NCERT solutions for Chemistry - Part 1 and 2 [English] Class 11 chapter 13 - Hydrocarbons [Latest edition]

How do you account for the formation of ethane during chlorination of methane?

Write IUPAC name of the following compound:

CH₃CH = C(CH₃)₂

Write IUPAC name of the following compound: 

CH₂ = CH - C ≡ C - CH₃

Write IUPAC name of the following compound:

Write IUPAC name of the following compound:

Write IUPAC name of the following compound:

Write IUPAC name of the following compound:

\[\begin{array}{cc}
\ce{CH3(CH2)4 CH(CH2)3 CH3}\\
|\phantom{..}\\
\phantom{..............}\ce{CH2 - CH(CH3)2}
\end{array}\]

Write IUPAC name of the following compound:

\[\begin{array}{cc}
\ce{CH3 - CH = CH - CH2 - CH = CH - CH - CH2 - CH = CH2}\\
\phantom{.................}|\\\phantom{.....................}\ce{C2H5}\end{array}\]

For the following compound, write structural formula and IUPAC name for all possible isomers having the number of a double or triple bond as indicated:

C₄H₈ (one double bond)

For the following compound, write structural formula and IUPAC name for all possible isomers having the number of the double or triple bond as indicated:

C₅H₈ (one triple bond)

Write IUPAC name of the product obtained by the ozonolysis of the following compound.

Pent-2-ene

Write IUPAC name of the product obtained by the ozonolysis of the following compound:

3,4-Dimethyl-hept-3-ene

Write IUPAC name of the product obtained by the ozonolysis of the following compound:

2-Ethylbut-1-ene 

Write IUPAC name of the product obtained by the ozonolysis of the following compound: 

1-Phenylbut-1-ene

An alkene ‘A’ on ozonolysis gives a mixture of ethanal and pentan-3-one. Write structure and IUPAC name of ‘A’.

An alkene ‘A’ contains three C – C, eight C – H σ bonds and one C – C π bond. ‘A’ on ozonolysis gives two moles of an aldehyde of molar mass 44 u. Write IUPAC name of ‘A’.

Propanal and pentan-3-one are the ozonolysis products of an alkene? What is the structural formula of the alkene?

Write a chemical equation for combustion reaction of the following hydrocarbon:

Butane

Write a chemical equation for combustion reaction of the following hydrocarbon: 

Pentene 

Write a chemical equation for combustion reaction of the following hydrocarbon:

Hexyne

Write a chemical equation for combustion reaction of the following hydrocarbon:

Toluene

Draw the cis and trans structures of hex-2-ene. Which isomer will have higher b.p. and why?

Why is benzene extra ordinarily stable though it contains three double bonds?

What are the necessary conditions for any system to be aromatic?

Explain why the following system is not aromatic?

Explain why the following system is not aromatic?

Explain why the following system is not aromatic?

How will you convert benzene into p-nitrobromobenzene?

How will you convert benzene into m-nitrochlorobenzene?

How will you convert benzene into p -nitrotoluene?

How will you convert benzene into acetophenone?

In the alkane H₃C–CH₂–C(CH₃)₂–CH₂–CH(CH₃)₂, identify 1°,2°,3° carbon atoms and give the number of H atoms bonded to each one of these.

What effect does branching of an alkane chain has on its boiling point?

Addition of HBr to propene yields 2-bromopropane, while in the presence of benzoyl peroxide, the same reaction yields 1-bromopropane. Explain and give mechanism.

Write down the products of ozonolysis of 1, 2-dimethylbenzene (o-xylene). How does the result support Kekulé structure for benzene?

Arrange benzene, n-hexane and ethyne in decreasing order of acidic behaviour. Also give reason for this behaviour.

Why does benzene undergo electrophilic substitution reactions easily and nucleophilic substitutions with difficulty?

How would you convert the following compound into benzene?

Ethyne

How would you convert the following compound into benzene?

Ethene

How would you convert the following compound into benzene?

Hexane

Arrange the set of compound in order of their decreasing relative reactivity with an electrophile, E⁺ Chlorobenzene, 2,4-dinitrochlorobenzene, p-nitrochlorobenzene.

Arrange the set of compound in order of their decreasing relative reactivity with an electrophile, E⁺ Toluene, p-H₃C–C₆H₄–NO₂, p-O₂N–C₆H₄–NO₂.

Out of benzene, m–dinitrobenzene and toluene which will undergo nitration most easily and why?

Suggest the name of a Lewis acid other than anhydrous aluminium chloride which can be used during ethylation of benzene.

Why is Wurtz reaction not preferred for the preparation of alkanes containing odd number of carbon atoms? Illustrate your answer by taking one example