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प्रश्न
Draw the electron dot structures for H2S.
उत्तर
OR
H – S – H
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संबंधित प्रश्न
Give any two differences between alkanes and alkenes.
Define Saturated hydrocarbon.
Write the number of covalent bonds in the molecule of ethane.
Give a chemical test to distinguish between saturated and unsaturated hydrocarbons.
Explain in brief two main reasons for carbon forming a large number of compounds.
How many structural isomers can you draw for pentane?
Write the name and structure of a saturated compound in which the carbon atoms are arranged in a ring. Give the number of single bonds present in this compound.
Write a short note on Catenation.
Write the electron-dot structures for ethene.
Fill in the following blank with suitable word:
The form of carbon which is used as a lubricant at high temperature is .........
Which of the two is better for our health : butter or vegetable oil? Why?
Name the reaction which is usually used in the conversion of vegetables oils to fats. Explain the reaction involved in detail. Write a chemical equation to illustrate your answer.
Which of the following hydrocarbons can decolourise bromine water and which cannot? Why?
C6H12, C6H14, C6H10
Identify the unsaturated compounds from the following:
- Propane
- Propene
- Propyne
- Chloropropane
Pentane has the molecular formula C5 H12 It has
The name of the compound CH3 — CH2 — CHO is
Unsaturated hydrocarbons contain multiple bonds between the two C-atoms and show addition reactions. Give the test to distinguish ethane from ethene.
What is the role of metal or reagents written on arrows in the given chemical reactions?
- \[\begin{array}{cc}
\ce{CH3}\phantom{.....}\ce{CH3}\phantom{.........}\ce{CH3}\phantom{..}\ce{CH3}\phantom{..........}\\
\phantom{...}\backslash\phantom{......}/\phantom{................}|\phantom{.....}|\phantom{............}\\
\ce{C} = \ce{C} + \ce{H2} \overset{\ce{Ni}}{\rightarrow} \ce{CH3 - C - C - CH3}\\
\phantom{.}/\phantom{........}\backslash\phantom{..............}|\phantom{....}|\phantom{.........}\\
\ce{CH3}\phantom{....}\ce{CH3}\phantom{............}\ce{H}\phantom{...}\ce{H}\phantom{........}
\end{array}\] - \[\ce{CH3COOH + CH3CH2OH \overset{\ce{Conc. H2SO4}}{\rightarrow}CH3COOC2H5 + H2O}\]
- \[\ce{CH3CH2OH}\ce{->[Alk.KMnO4][Heat]CH3COOH}\]
- Write the name and draw the structure of a saturated hydrocarbon with four carbon atoms.
- Write the number of single covalent bonds present in this compound.
