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Chapters
2: Chemical Bonding
3: Acids, Bases and Salts
4: Analytical Chemistry: Uses of Ammonium Hydroxide and Sodium Hydroxide
5: Mole concept and Stoichiometry
6: Electrolysis
7: Metallurgy
8: Study of Compounds - Hydrogen Chloride
9: Study of Compounds - Ammonia
10: Study of Compounds - Nitric Acid
11: Sulphuric Acid
▶ 12: Organic Chemistry
13: Practical Work
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Solutions for Chapter 12: Organic Chemistry
Below listed, you can find solutions for Chapter 12 of CISCE Selina for Concise Chemistry [English] Class 10 ICSE.
Selina solutions for Concise Chemistry [English] Class 10 ICSE 12 Organic Chemistry Intext Questions [Pages 188 - 187]
What are organic compounds?
What is the Vital force theory? Why was it discarded?
Name a few sources of organic chemistry ?
Give the various applications of organic chemistry ?
Organic chemistry plays a key role in all walks of life. Discuss
Carbon shows some unique properties, name them.
Explain the following:
Tetravalency
Explain the following : Catenation
Write any four properties of organic compounds that distinguish them from inorganic compounds.
Why are organic compounds studies as a separate branch of chemistry?
What are hydrocarbons?
Compare saturated and unsaturated hydrocarbons?
Give reason for the existence of the large number of organic compounds.
Give at least one example in case to show the structure of isomers of single-bond compounds.
Give at least one example in case to show the structure of isomers of double bond compounds.
Give at least one example in case to show the structure of isomers of a triple bond compound.
Name a compound and draw the figure:
Cyclic compound with a single bond.
Name a compound and draw the figure:
Cyclic compound with the triple bond.
Give the name of one member of the saturated hydrocarbons.
Give the name of one member of the unsaturated hydrocarbons.
Define the substitution reaction.
Define addition reaction.
Give an example of substitution reactions.
Give an example of an addition reaction.
Selina solutions for Concise Chemistry [English] Class 10 ICSE 12 Organic Chemistry Intext Questions [Page 193]
Define a functional group.
Give the structural formula of the ketone.
Give the structural formula of the alcohols.
Give the structural formula of the aldehydes.
Write the name and formula of the fourth member of the following homologous series:
Alkyne
Which part of an organic compound determines physical properties?
Which part of an organic compound determines chemical properties?
Name the alkyl radical and the functional group of the following organic compound:
\[\ce{CH3OH}\]
Name the alkyl radical and the functional group of the following organic compound:
\[\ce{C2H5OH}\]
Name the alkyl radical and the functional group of the following organic compound:
\[\ce{C3H7CHO}\]
Name the alkyl radical and the functional group of the following organic compound:
\[\ce{C4H9COOH}\]
Name the alkyl radical and the functional group of the following organic compound:
\[\ce{CH3COOH}\]
Name the alkyl radical and the functional group of the following organic compound:
\[\ce{HCHO}\]
What is an alkyl group?
Give the names of any three alkyl radicals. How are they formed?
Give the names and the structural formula of the first three members of the homologous series of alkanes.
What is a homologous series?
What is the difference in the molecular formula of any two adjacent homologues:
(i) In terms of molecular mass
(ii) In terms of number and kind of atoms per molecule?
Selina solutions for Concise Chemistry [English] Class 10 ICSE 12 Organic Chemistry EXERCISE - 12A [Pages 194 - 196]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\\
|\\
\ce{CH3 -C -CH3}\\
|\\
\ce{CH3}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3 -CH -CH2 -CH3}\\
|\phantom{.......}\\
\ce{CH3}\phantom{.......}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\phantom{.}\ce{H\phantom{...}H\phantom{...}H}\\
\phantom{.}|\phantom{....}|\phantom{....}|\\
\ce{H - C = C - C -H}\\
\phantom{..........}|\\
\phantom{..........}\ce{H}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\phantom{.........}\\
|\phantom{.........}\\
\ce{H3C - C - CH2CH2CH3}\\
|\phantom{.........}\\
\ce{CH3}\phantom{.........}
\end{array}\]
Write the IUPAC name of the following:
\[\ce{CH3 - C ≡ C - CH2 CH3}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\phantom{............}\ce{CH3}\\
\phantom{.........}|\\
\ce{H - C ≡ C - C - H}\\
\phantom{.........}|\\
\phantom{............}\ce{CH3}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{Cl}\phantom{............}\\
|\phantom{.............}\\
\ce{CH3 - CH - CH - CH2 CH3}\\
|\\
\phantom{.}\ce{Cl}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\phantom{...}\ce{CH3}\phantom{......}\\
|\phantom{......}|\phantom{.........}\\
\ce{CH2 - CH - CH2}\\
\phantom{...........}|\\
\phantom{.......................}\ce{CH2 CH2 CH3}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H}\phantom{..}\ce{H}\\
|\phantom{...}|\\
\ce{H3C - C = C - CH3}\\
\end{array}\]
Write the IUPAC name of the following:
\[\ce{CH3 - C ≡ C - CH2 CH2 CH2 CH3}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\phantom{.............}\\
|\phantom{...............}\\
\ce{CH3 - C - CH2 CH2 CH2 CHO}\\
|\phantom{...............}\\
\ce{CH3}\phantom{............}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3 - CH - CH2 CH2 CH3}\\
|\phantom{............}\\
\ce{OH}\phantom{..........}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3 CH CH2 CH2 COOH}\\
|\phantom{..............}\\
\ce{CH3}\phantom{...........}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\phantom{.....}\\
|\phantom{.....}\\
\ce{CH3 - C - CH2 CH3}\\
|\phantom{.....}\\
\ce{Br}\phantom{.....}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\phantom{.........}\\
|\phantom{...........}\\
\ce{CH3 - CH - CH2 - CH2Br}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H}\phantom{.........}\\
|\phantom{.........}\\
\ce{H - C - C ≡ C - H}\\
|\phantom{.........}\\
\ce{H}\phantom{.........}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H - C = O}\\
|\\
\ce{H}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H}\phantom{.........}\\
|\phantom{.........}\\
\ce{H - C - C ≡ C - H}\\
|\phantom{.........}\\
\ce{H}\phantom{.........}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H\phantom{...}H\phantom{...}H\phantom{..}}\\
\phantom{..}|\phantom{....}|\phantom{....}|\phantom{....}\\
\ce{H - C - C - C - OH}\\
\phantom{..}|\phantom{....}|\phantom{....}|\phantom{....}\\
\ce{H\phantom{...}H\phantom{...}H\phantom{..}}\\
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{\phantom{.....}H\phantom{...}O}\\
\phantom{.....}|\phantom{....}||\\
\ce{H - C - C}\\
\phantom{.....}|\phantom{....}|\\
\ce{\phantom{.......}H\phantom{...}OH}\\
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H\phantom{...}O}\\
|\phantom{....}||\\
\ce{H - C - C - H}\\
|\phantom{.....}\\
\ce{H}\phantom{.....}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H\phantom{...}H}\\
|\phantom{....}|\\
\ce{H - C - C - H}\\
|\phantom{....}|\\
\ce{Cl\phantom{...}Cl}\\\end{array}\]
Write the structure of the following compound:
Prop-1-ene
The Structure of the Following Compound :
2,3-dimethylbutane
Write the structure of the following compound:
2 – methylpropane
Write the structure of the following compound:
3-hexene
Write the structure of the following compound:
prop-1-yne
Write the structure of the following compound:
2-methylprop-1-ene
Write the structure of the following compound:
Alcohol with molecular formula \[\ce{C4H10O}\]
\[\ce{C5H11}\] is an ______.
alkane
alkene
alkyne
alkyl group
A hydrocarbon of the general \[\ce{C_nH_{2n}}\] is ______.
\[\ce{C15H30}\]
\[\ce{C12H26}\]
\[\ce{C8H20}\]
\[\ce{C6H14}\]
The total number of different carbon chains that four carbon atoms form in alkane is ______.
5
4
3
2
\[\ce{CH3 - CH2 - OH}\] and \[\ce{CH3 - O - CH3}\] are ______.
position isomers
chain isomers
homologous
functional group isomers
The IUPAC name of the compound is
\[\begin{array}{cc}
\phantom{........}\ce{CH3}\\
\phantom{......}|\\
\ce{CH3 - CH2 - CH2 - CH - CH2 - CH3}
\end{array}\]
3-trimethylhexane
3-methylhexane
4-methylhexane
Propane and ethane are ______.
Homologues
isomers
A saturated hydrocarbon does not participate in a/an ______ reaction.
substitution
addition
Succeeding members of a homologous series differ by ______.
\[\ce{CH}\]
\[\ce{CH2}\]
\[\ce{CH3}\]
As the molecular masses of hydrocarbons increase, their boiling points ______ and melting points ______.
increase
decrease
\[\ce{C25H52}\] and \[\ce{C50H102}\] belong to ______ homologous series.
the same
different
\[\ce{CO}\] is an ______ compound.
organic
inorganic
The chemical properties of an organic compound are largely decided by the ______ and the physical properties of an organic compound are largely decided by the ______.
functional group
number of carbon atoms
\[\ce{CHO}\] is the functional group of an ______.
alcohol
aldehyde
Fill in the blank:
The root in the IUPAC name of an organic compound depends upon the number of carbon atoms in _____________
any chain
principal chain
But-1-ene and but-2-ene are examples of ______ isomerism.
chain
position
functional
Define or explain chain isomerism with an example.
Define or explain position isomerism with an example.
Define the term isomerism.
State two main causes of isomerism.
Draw the chain isomers of hexane \[\ce{(C6H14)}\].
Draw position isomers of butene (C4H8)?
Draw the structural formula for the following compound:
isomer of n-butane
Draw the structural formula for the following compound:
vinegar
Draw the structural formula for the following compound:
2-propanol
Draw the structural formula for the following compound:
Ethanal
Draw the structural formula for the following compound:
Acetone
Draw the structural formula for the following compound: diethyl ether
What is the special feature of the structure of (i) ethene (ii) ethyne
What is the special feature of the structure of ethyne?
What type of reaction is common to both the ethene and ethyne compounds? Why methane does not undergo this type of reaction.
What is IUPAC name of dimethyl ether?
Which type of reaction will ethane undergo?
Which type of reaction will Ethene undergo?
Choosing only words from the following list, write down appropriate words to fill in the blanks from (a) to (e) given below.
[Addition, carbohydrates, CnH2n−2, CnH2n, CnH2n+2, electrochemical homologous, hydrocarbon, saturated, substitution, unsaturated].
The alkanes from an (a) ______ series with the general formula (b) ______ The alkanes are (c) ______ (d) ______ which generally undergo (e) ______ reactions.
Draw the structural formula of a compound with two carbon atoms in the following case.
An alkane with carbon to carbon single bond
Draw the structural formula of a compound with two carbon atoms in the following case.
An alcohol containing two carbon atoms
Draw the structural formula of a compound with two carbon atoms in the following case.
An unsaturated hydrocarbon with carbon to carbon triple bond
[Ethane, Ethene, Ethanoic acid, Ethyne, Ethanol]
From the above list, name the compound with \[\ce{-OH}\] as the part of its structure.
[Ethane, Ethene, Ethanoic acid, Ethyne, Ethanol]
From the above, name the compound with \[\ce{-COOH}\] as part of its structure.
[Ethane, Ethene, Ethanoic acid, Ethyne, Ethanol]
From the above, name the homologue of the homologous series with the general formula CnH2n.
Give the correct IUPAC name and the functional group for the compound whose structural formula is given below:
\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{O}\\
\phantom{.}|\phantom{....}|\phantom{....}||\\
\ce{H - C - C - C - H}\\
|\phantom{....}|\phantom{.....}\\
\ce{H}\phantom{...}\ce{H}\phantom{.....}\\
\end{array}\]
Give the correct IUPAC name and the functional group for the compound whose structural formula is given below:
\[\begin{array}{cc}
\ce{H\phantom{...}H\phantom{...}H\phantom{..}}\\
|\phantom{....}|\phantom{....}|\phantom{..}\\
\ce{H - C - C - C - OH}\\
|\phantom{....}|\phantom{....}|\phantom{..}\\
\ce{H\phantom{...}H\phantom{...}H\phantom{..}}
\end{array}\]
Copy and complete the following table which relates to three homologus series of hydrocarbons:
General formula | CnH2n | CnH2n-2 | CnH2n+2 |
IUPAC name of the homologus series | |||
Characteristic bond type | Single bonds | ||
IUPAC name of the first member of the series | |||
Type of reaction with chlorine | Addition |
Fill in the blanks with the correct words from the brackets:
Alkenes are the (i) ______ (analogous/homologous) series of (ii) ______ (saturated/unsaturated) hydrocarbons. They differ from alkanes due to presence of (c) ______ (double/single) bonds. Alkenes mainly undergo (iv) ______ (addition/substitution) reactions.
Fill in the blanks with the correct words from the brackets:
The organic compound which undergoes substitution reaction is ______.
(C2H2, C2H4, C10H18, C2H6)
Draw the structural formulae of the two isomers of Butane. Give the correct IUPAC name of each of the isomer.
Name the saturated hydrocarbon containing two carbon atoms.
Name an alcohol with three carbon atom.
Name a triple bond hydrocarbon with two carbon atoms.
Selina solutions for Concise Chemistry [English] Class 10 ICSE 12 Organic Chemistry EXERCISE - 12B [Page 202]
State the sources of Alkanes.
Methane is a greenhouse gas. comment.
Give the general formula of alkanes.
Draw the structures of isomers of butane. Write the IUPAC and common names of these isomers.
Draw the structures of the isomer of pentane. Write the IUPAC and common names of these isomer
Write the molecular formula of methane.
Write the molecular formula of ethane.
Write the electron dot formula of methane.
Write the electron dot formula of ethane.
Write the structural formula of methane.
Write the structural formulae of the following compound:
Ethane
How is methane prepared in the laboratory?
How is ethane prepared in the laboratory?
How is methane prepared from methyl iodide?
How is ethane prepared from ethyl bromide?
What is the substitution reaction?
Give the reaction of chlorine with ethane and name the product formed.
Name the compounds formed when methane burns in sufficient air. Give a balanced equation.
Name the compounds formed when methane burns in insufficient air. Give a balanced equation
Write the names and formula of the products formed when Methane reacts with : (i) Chlorine (ii) bromine. Write the chemical equations.
Write the names and the formula of the products formed when methane reacts with bromine. Write the chemical equations.
Write the names and the formula of the products formed when ethane reacts with chlorine. Write the chemical equations.
Write the names and the formula of the products formed when ethane reacts with bromine. Write the chemical equations.
Name the compound prepared from sodium propionate. Write the balanced equation for the same.
Name the compound prepared from methyl iodide. Write the balanced equation for the same
Name the compound prepared from ethyl bromide. Write a balanced equation for the same.
Write the chemical equation for the following:
Combustion of methane
Convert methane into chloroform.
Convert sodium acetate into methane.
Convert methyl iodide into ethane.
Convert methane to methyl alcohol.
Give three uses of methane.
Give three uses of ethane.
Under what conditions does ethane gets converted to Ethyl alcohol
Under what conditions does ethane get converted to acetaldehyde?
Under what conditions does ethane gets converted to acetic acid?
Using appropriate catalysts, ethane can be oxidized to an alcohol. Name the alcohol formed when ethane is oxidized.
Using appropriate catalysts, ethane can be oxidized to an aldehyde. Name the aldehyde formed when ethane is oxidized.
Using appropriate catalysts, ethane can be oxidized to an acid. Name the acid formed when ethane is oxidized.
Selina solutions for Concise Chemistry [English] Class 10 ICSE 12 Organic Chemistry EXERCISE - 12C [Page 206]
Write the molecular formula of ethene (Ethylene).
Write the electron dot formula of ethene (ethylene).
Write the structural formula of ethene (ethylene).
The molecules of the alkene family are represented by a general formula CnH2n. Answer the following:
What do n signify?
The molecules of the alkene family are represented by a general formula CnH2n. Answer the following:
What do 2n signify?
The molecules of the alkene family are represented by a general formula CnH2n. Answer the following:
What is the name of the alkene when n = 4?
The molecules of the alkene family are represented by a general formula CnH2n. Answer the following:
What is the molecular formula of alkene when n = 4?
The molecules of the alkene family are represented by a general formula CnH2n. Answer the following:
What is the molecular formula of the alkene if there are ten H atoms in it?
The molecules of the alkene family are represented by a general formula CnH2n. Answer the following:
What is the structural formula of the third member of the alkene family?
The molecules of the alkene family are represented by a general formula CnH2n. Answer the following:
Write the molecular formula of lower and higher homologous of an alkene which contains four carbon atoms.
Distinguish between the saturated hydrocarbon ethane and the unsaturated hydrocarbon ethene by drawing their structural formulae.
Draw the structure of isomers of butene and write their IUPAC names.
Give a balanced equation for the lab. Preparation of ethylene. How is the gas collected?
How is ethene prepared by a dehydrohalogenation reaction? Give an equation and name the products formed.
How is ethene prepared by a dehydration reaction? Give an equation and name the products formed.
Ethylene (ethene), when reacts with halogens (chlorine and bromine) form saturated products. Name them and write balanced equations.
Give the conditions and the main products formed by hydrogenation of ethene.
Convert ethanol into ethene using a solid dehydrating agent. Give only balanced equation.
Convert ethanol into ethene using hot conc. H2SO4. Give only balanced equation.
Write the following property of ethene:
Physical state
Write the following property of ethene:
Odour
Write the following property of ethene:
Density as compared to air
Write the following property of ethene:
Solubility
How would you convert ethyl bromide into ethene?
How would you convert ethene into 1,2-dibromoethane?
How would you convert ethene into ethane?
Give balanced equations when ethene is burnt in excess of oxygen.
Give a balanced equation when ethene reacts with chlorine gas.
Give balanced equations when ethene combines with hydrogen chloride.
Give balanced equation when a mixture of ethene and hydrogen is passed over nickel at 200°C.
Give the formula and name of A, B, C and D in the following equation:
\[\ce{CH4 ->[Cl2][-HCl] A ->[Cl2][-HCl] B ->[Cl2][-HCl] C->[Cl2][-HCl] D}\]
Give the formula and name of A, B, C and D in the following equation:
\[\ce{C2H2 ->[H2] A ->[H2] B ->[Br2][-HBr] C ->[Br2][-HBr] D}\]
Give the formula and name of A, B, C and D in the following equation:
\[\ce{C2H4 + B ->[200^\circ C][Ni] C2H6}\]
Write the name and formula of the product formed in the case below:
C2H4 + Cl2 →
Write the name and formula of the product formed in the case below:
\[\ce{C2H5I + KOH(alc) ->[\Delta]}\]
Write the name and formula of the product formed in the case below:
\[\ce{H2C = CH2 ->[alk.KMnO4]}\]
Write the name and formula of the product formed in the case below:
\[\ce{H2C = CH2 + HBr}\] →
What do you observe when ethene is passed through an alkaline KMnO4 solution?
Name three compounds formed by ethene and give one use of each compound.
Selina solutions for Concise Chemistry [English] Class 10 ICSE 12 Organic Chemistry EXERCISE - 12D [Page 210]
What are the sources for alkynes?
Give the general formula of alkynes.
Give an example of isomers shown by triple bond hydrocarbons (alkynes) and write their IUPAC names.
Draw a diagram of acetylene prepared in the laboratory.
Give an equation of acetylene prepared in the laboratory.
How is pure dry gas collected acetylene prepared in the laboratory?
Give the method of preparation of ethyne by 1, 2-dibromoethene.
Name the hydrocarbon which is a tetrahedral molecule.
Name the hydrocarbon which is a planar molecule.
Name the hydrocarbon which is a linear molecule.
Name the hydrocarbon which forms a red precipitate with ammoniacal solution of copper (I) chloride.
Name the hydrocarbon which is known as paraffin.
Name the hydrocarbon which is known as olefin.
Name the hydrocarbon which will give acetylene (ethyne) gas when treated with water.
Classify the compound C3H4 as alkanes, alkenes, and alkynes.
Classify the compound C3H8 as alkanes, alkenes, and alkynes.
Classify the compound C5H8 as alkanes, alkenes, and alkynes.
Classify the C3H6 compound as alkanes, alkenes, and alkynes.
Give a chemical test to distinguish between Saturated and Unsaturated?
Give a chemical test to distinguish between ethane and ethene.
Give a chemical test to distinguish between ethene (ethylene) and ethyne (acetylene).
Compound X bubbled through bromine dissolved in carbon tetrachloride CCl4;
\[\begin{array}{cc}
\ce{X ->[Br2CCl4] CH2Br}\\
\phantom{......}|\\
\phantom{...........}\ce{CH2Br}\\
\end{array}\]
Draw the structure of X.
Compound X bubbled through bromine dissolved in carbon tetrachloride CCl4;
\[\begin{array}{cc}
\ce{X ->[Br2CCl4] CH2Br}\\
\phantom{......}|\\
\phantom{...........}\ce{CH2Br}\\
\end{array}\]
State your observation during the reaction.
Give a balanced equation for the following conversion.
An alkene to an alkane.
Give a balanced equation for the following conversion.
An alkene to an alcohol.
Give a balanced equation for the following conversion.
An alkyne to an alkene.
Name the products formed and write an equation when ethyne is added to the following in an inert solvent:
Chlorine
Name the products formed and write an equation when ethyne is added to the following in an inert solvent:
Bromine
Name the products formed and write an equation when ethyne is added to the following in an inert solvent:
Iodine
Name the products formed and write an equation when ethyne is added to the following in an inert solvent:
hydrogen
Name the products formed and write an equation when ethyne is added to the following in an inert solvent:
excess of hydrochloric acid
Substitution reactions are characteristic reactions of ______.
alkynes
alkenes
alkanes
Write an equation for the laboratory preparation of an unsaturated hydrocarbon from calcium carbide.
Write an equation for the laboratory preparation of an alcohol from ethyl bromide.
What would you see, when ethyne is bubbled through a solution of bromine in carbon tetrachloride?
Name the addition product formed between ethene and water.
Give reasons:
Ethyne is more reactive than ethene.
Give reasons:
Ethene is more reactive than ethane.
Give reasons:
Hydrocarbons are excellent fuels.
Write a balanced equation when butane is burnt in oxygen.
Write a balanced equation:
Preparation of ethylene from ethyl alcohol.
Convert ethane to acetic acid.
Convert ethyne to ethane.
Write the equation for the preparation of carbon tetrachloride from methane.
Draw the structure formula of ethyne.
How is the structure of alkynes different from that of alkenes?
Selina solutions for Concise Chemistry [English] Class 10 ICSE 12 Organic Chemistry EXERCISE - 12E [Page 214]
What are alcohols?
State the sources of alcohol.
Give general formulae of monohydric alcohol?
Give the dot diagram of the first member of the alcohol.
Give the abbreviated formula of the third member of the alcohol.
Give the structure of the second member of the alcohol group
Give the structure of alcohol with 4 carbon atoms.
State the method of preparation of ethanol by hydrolysis of ethene.
State the method of preparation of ethanol by hydrolysis of ethyl bromide.
Halo alkanes react with alkalies to produce alcohol. Give the equation for the preparation of the second member of the homologous series of alcohol. State under what condition the reaction occurs.
How do the boiling point and melting point change in the homologous series of alcohols?
Name the product formed when ethanol reacts with acetic acid. Give an equation. What is the name given to this type of reaction?
Complete and balance the following equation. State the condition wherever necessary.
\[\begin{array}{cc}
\ce{CH}\phantom{..............................}\\
\ce{|||\phantom{..}+ H2 -> \underline{}\underline{}\underline{}\underline{} + H2 -> \underline{}\underline{}\underline{}\underline{}}\\
\ce{CH}\phantom{..............................}
\end{array}\]
Complete and balance the following equation. State the condition wherever necessary.
C2H4 + Br2 → ______
Complete and balance the following equation. State the condition wherever necessary.
C2H4 + HCl → ______
Complete and balance the following equation. State the condition wherever necessary.
CaC2 + H2O → ______
Complete and balance the following equation. State the condition wherever necessary.
C2H2 + Br2 → ______
Complete and balance the following equation. State the condition wherever necessary.
\[\ce{C2H5OH ->[O][K2Cr2O7]}\] ______
What is the effect of ethanol on the human body?
How is the absolute alcohol obtained?
How is the spurious alcohol obtained?
How is the methylated spirit obtained?
Name the products formed and give appropriate chemical equations for the following:
sodium reacting with ethyl alcohol.
Name the product formed and give an appropriate chemical equation for the following:
Ethanol oxidised by acidified potassium dichromate?
Give the trivial (common) name and IUPAC name of the following:
C3H6
Give the trivial (common) name and IUPAC name of the following:
C2H4
Give the trivial (common) name and IUPAC name of the following:
C2H2
Give the trivial (common) name and the IUPAC name of the following:
CH3OH.
Give the trivial (common) name and the IUPAC name of the following:
C2H5OH.
Ethanol can be oxidized to ethanoic acid. Write the equation and name the oxidizing agent.
Name an organic compound which is used for illuminating country houses.
Name an organic compound which is used for making a household plastic material.
Name an organic compound which is called 'wood spirit'.
Name an organic compound which is poisonous and contains OH group.
Name an organic compound which is consumed as a drink.
Name an organic compound which is Made from water gas ?
Name an organic compound which is: solvent for gums and resins.
Name an organic compound which is dehydrated to produce ethene.
Ethanol can be converted into ethene which can be changed into ethane. Choose the correct word or phrase from the bracket to complete the following sentence.
The conversion of ethanol into ethene is an example of ______. (dehydration, dehydrogenation).
Ethanol can be converted into ethene which can be changed into ethane. Choose the correct word or phrase from the bracket to complete the following sentence.
Converting ethanol into ethene requires the use of ______. (conc. HCl, conc. HNO3, conc. H2SO4)·
Ethanol can be converted into ethene which can be changed into ethane. Choose the correct word or phrase from the bracket to complete the following sentence.
The conversion of ethene into ethane is an example of ______. (hydration, hydrogenation).
Write the equation of the following laboratory preparation:
Ethane from sodium propionate
Write the equation of the following laboratory preparation:
Ethene from iodoethane
Write the equation for the following lab preparation:
Ethyne from Calcium carbide
Write the equation for the following lab preparation:
Methanol from iodomethane.
Name the compound prepared by the following reaction:
C2H5COONa +NaOH →
Name the compound prepared by the following reaction:
CH3I +2H →
Name the compound prepared by the following reaction:
C2H5Br + KOH (alcoholic solution) →
Name the compound prepared by the following reaction:
CO + 2H2 (Zinc oxide catalyst) →
Name the compound prepared by the following reaction:
CaC2 + 2H2O →
Write the equation for the following reaction:
Calcium carbide and water
Write the equation for the following reaction:
Ethene and water (steam)
Write the equation for the following reaction:
Bromoethane and an aqueous solution of sodium hydroxide.
Give the trivial (common) name and the IUPAC name of the following:
CH3OH.
Ethanol can be converted into ethene which can be changed into ethane. Choose the correct word or phrase from the bracket to complete the following sentence.
The catalyst used in the conversion of ethene to ethane is commonly ______ (iron, cobalt, nickel).
Selina solutions for Concise Chemistry [English] Class 10 ICSE 12 Organic Chemistry EXERCISE - 12F [Page 217]
What are carboxylic acids?
Give the general formula of carboxylic acids.
Write the name of the first three members of the carboxylic acid series.
Write the names of three compounds which can be oxidised directly or in stages to produce acetic acid.
Give the structural formulae of acetic acid.
IUPAC name of acetic acid.
Vinegar is greyish in colour with a particular taste. Explain.
Complete:
Vinegar is prepared by the bacterial oxidation of ______.
Complete :
The organic acid present in vinegar is ……………………..
Complete:
The next higher homologue of ethanoic acid is ______.
How is acetic acid prepared from ethanol?
How is acetic acid prepared from acetylene?
What do you notice when acetic acid reacts with litmus?
What do you notice when acetic acid reacts with metals?
What do you notice when acetic acid reacts with alkalies?
What do you notice when acetic acid reacts with alcohol?
Acetic acid is a typical acid. Write one equation in case of its reactions with a metal?
Acetic acid is a typical acid. Write one equation in case of its reactions with a base/alkali?
Acetic acid is a typical acid. Write one equation in case of its reactions with a carbonate.
Acetic acid is a typical acid. Write one equation in case of its reactions with a bicarbonate.
What do you observe when acetic acid is added to sodium bicarbonate?
What do you observe when acetic acid is added to ethyl alcohol in the presence of sulphuric acid?
What do you observe when acetic acid is added to a neutral FeCl3 solution?
Name the compound formed when acetic acid and ethanol react together?
Name the reducing agent used to convert acetic acid into ethanol?
Name the substance used to change acetic acid to acetic anhydride?
What is glacial acetic acid ?
Selina solutions for Concise Chemistry [English] Class 10 ICSE 12 Organic Chemistry MISCELLANEOUS [Page 217]
Which of the following statements is wrong about alkanes?
They are all saturated hydrocarbons.
They can undergo addition as well as substitution reaction.
They are almost non-polar in nature.
On complete combustion, they give out carbon dioxide and water.
The organic compound obtained as the end product of the fermentation of a sugar solution is ______.
Methanol
Ethanol
Ethane
Methanoic acid
Find the odd one out and explain:
C3H8
C5H10
C2H6
CH4
Give the chemical equation for the laboratory preparation of methane from sodium acetate.
Give the chemical equation for the reaction of one mole of ethene with one mole of chlorine gas.
Give the chemical equation for the preparation of ethyne from 1, 2-dibromoethane.
State how the following conversion can be carried out:
Ethyl chloride to Ethyl alcohol
State how the following conversion can be carried out:
Ethyl chloride to ethene
State how the following conversion can be carried out:
Ethene to ethyl alcohol
State how the following conversion can be carried out:
Ethyl alcohol to ethene
Define isomerism.
Give the IUPAC name of the isomer C4H10 which has a branched-chain.
A compound X when treated with an organic acid Y (having vinegar-like smell) in the presence of the acid Z, forms a compound P which has a fruity smell.
- Identify X, Y, and Z
- Write the structural formula of X and Y.
- What type of compound P is?
- Name the above reaction.
- If compound X and Y both have 2 carbon atoms. Write the reaction.
Solutions for 12: Organic Chemistry
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Selina solutions for Concise Chemistry [English] Class 10 ICSE chapter 12 - Organic Chemistry
Shaalaa.com has the CISCE Mathematics Concise Chemistry [English] Class 10 ICSE CISCE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Selina solutions for Mathematics Concise Chemistry [English] Class 10 ICSE CISCE 12 (Organic Chemistry) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
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Concepts covered in Concise Chemistry [English] Class 10 ICSE chapter 12 Organic Chemistry are Special Features of Carbon, Functional Groups in Carbon Compounds, Laboratory Preparation of Methane, Ethene (Ethylene), Laboratory Preparation of Ethyne, Organic Compounds, Organic Compounds in Daily Life, Hydrocarbons, Ethane, Preparation of Ethene (Ethylene), Alcohol, Ethanol, Laboratory Preparation of Ethanol, Classification of Organic Compound Based on the Kind of Atoms, Homologous Series of Carbon Compound, Classification of Organic Compounds Based on the Pattern of Carbon Chain, IUPAC Nomenclature of Hydrocarbons, Hydrocarbons: Alkynes, Ethyne, Nomenclature of Organic Compounds, Carbon: a Versatile Element, Classification of Compounds of Carbon, IUPAC Nomenclature of other classes, Alkyl Group, Isomers, Hydrocarbons: Alkanes, Methane, Laboratory Preparation of Ethane, Hydrocarbons: Alkenes, Carboxylic Acids, Ethanoic Acid, Special Features of Carbon, Functional Groups in Carbon Compounds, Laboratory Preparation of Methane, Ethene (Ethylene), Laboratory Preparation of Ethyne, Organic Compounds, Organic Compounds in Daily Life, Hydrocarbons, Ethane, Preparation of Ethene (Ethylene), Alcohol, Ethanol, Laboratory Preparation of Ethanol, Classification of Organic Compound Based on the Kind of Atoms, Homologous Series of Carbon Compound, Classification of Organic Compounds Based on the Pattern of Carbon Chain, IUPAC Nomenclature of Hydrocarbons, Hydrocarbons: Alkynes, Ethyne, Nomenclature of Organic Compounds, Carbon: a Versatile Element, Classification of Compounds of Carbon, IUPAC Nomenclature of other classes, Alkyl Group, Isomers, Hydrocarbons: Alkanes, Methane, Laboratory Preparation of Ethane, Hydrocarbons: Alkenes, Carboxylic Acids, Ethanoic Acid.
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