Question

Fill in the blanks with appropriate words. Benzene has a planar structure. All carbon atoms in benzene are I hybridised. The ring structure of benzene was proposed by II . It shows III substitution reactions. It reacts with IV in presence of aluminium chloride to form acetophenone.

• A. $I=s{p}_{2}II=KekuleIII=electrophilicIV=acetylchloride$
• B. $I=spII=DewarIII=nucleophilicIV=chloromethane$
• C. $I=s{p}_{3}II=LadenbergIII=electrophilicIV=chloroethane$
• D. $I=s{p}_{2}II=BaeyerIII=nucleophilicIV=methylbromide$

Answer 1

Answer: (A)

$I=s{p}_{2}II=KekuleIII=electrophilicIV=acetylchloride$

Benzene has a planar structure. All carbon atoms in benzene are $s{p}^2$ hybridised being bonded to two other carbon atoms and one hydrogen atom. The ring structure of benzene was proposed by Kekule. It shows electrophillic substitution reactions due to electron rich character. It reacts with acetyl chloride in presence of aluminium chloride to form acetophenone and the reaction is known as acylation of benzene.

Hence, A is correct answer