HARD
11th CBSE
IMPORTANT
Earn 100

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

Important Questions on Hydrocarbons

HARD
11th CBSE
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 6 - Hydrocarbons>EXERCISES>Q 13.18
Arrange benzene, n-hexane and ethyne in decreasing order of acidic behaviour. Also give reason for this behaviour.
HARD
11th CBSE
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 6 - Hydrocarbons>EXERCISES>Q 13.19
Why does benzene undergo electrophilic substitution reactions easily and nucleophilic substitutions with difficulty?
HARD
11th CBSE
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 6 - Hydrocarbons>EXERCISES>Q 13.2
How would you convert the following compounds into benzene?
Ethyne, Ethene, Hexane
EASY
11th CBSE
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 6 - Hydrocarbons>EXERCISES>Q 13.21
Write structures of all the alkenes which on hydrogenation give 2-methylbutane.
HARD
11th CBSE
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 6 - Hydrocarbons>EXERCISES>Q 13.22
Arrange the following set of compounds in order of their decreasing relative reactivity with an electrophile, E+
a) Chlorobenzene, 2,4-dinitrochlorobenzene, p-nitrochlorobenzene.
b) Toluene, p-H3C–C6H4–NO2, p-O2N–C6H4–NO2.
HARD
11th CBSE
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 6 - Hydrocarbons>EXERCISES>Q 13.23
Out of benzene, m–dinitrobenzene and toluene which will undergo nitration most easily and why?
HARD
11th CBSE
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 6 - Hydrocarbons>EXERCISES>Q 13.24
Suggest the name of a Lewis acid other than anhydrous aluminium chloride which can be used during ethylation of benzene.
MEDIUM
11th CBSE
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 6 - Hydrocarbons>EXERCISES>Q 13.25
Why is Wurtz reaction not preferred for the preparation of alkanes containing an odd number of carbon atoms? Illustrate your answer by taking one example.