EASY
AS and A Level
IMPORTANT
Earn 100

2,4-dinitromethylbenzene and 2,4,6-trinitromethylbenzene are formed on further nitration of methylbenzene. Draw the displayed formula of each compound.

Important Questions on Benzene and its Compounds

EASY
AS and A Level
IMPORTANT
Benzene also undergoes electrophilic substitution when refluxed with fuming sulphuric acid for several hours. This is called sulphonation. The electrophile is the SO3 molecule and the product formed is benzenesulphonic acid, C6H5SO3H. Suggest which atom in the SO3 molecule accepts an electron pair in the mechanism of sulphonation.
EASY
AS and A Level
IMPORTANT
Benzene also undergoes electrophilic substitution when refluxed with fuming sulphuric acid for several hours. This is called sulphonation. The electrophile is the SO3 molecule and the product formed is benzenesulphonic acid, C6H5SO3H. Write an equation in the style of SO3 molecule accepts an electron pair in the mechanism of sulphonation of benzene to form benzenesulphonic acid.
EASY
AS and A Level
IMPORTANT

Copy and complete the equation, which can be used to show the alkylation of benzene to produce the mono-substituted products.

C6H6+CH3CH2CH2Cl_____+_____.

EASY
AS and A Level
IMPORTANT

Copy and complete the equation, which can be used to show the acylation of benzene to produce the mono-substituted products.

C6H6+CH3CH2CH2CH2COCl_____+_____.

EASY
AS and A Level
IMPORTANT

C6H6+CH3CH2CH2Cl_____+_____.

Name the mono-substituted organic product in alkylation of benzene in the above given half reaction.
EASY
AS and A Level
IMPORTANT

C6H6+CH3CH2CH2CH2COCl_____+_____.

Name the class of compound formed in acylation of benzene in the above given half reaction.

HARD
AS and A Level
IMPORTANT
Hexylbenzene is refluxed with alkaline potassium manganate VII and then acidified with dilute sulphuric acid. The same experiment is carried out but using hexane and the oxidising agent. Compare what would happen in these experiments.
EASY
AS and A Level
IMPORTANT
Give the reagents and conditions needed to convert benzene into cyclohexane.