Question

The relationship between acetylene and benzene can be compared with the relationship of propyne with:

• A. xylene
• B. neoprene
• C. mesitylene
• D. propyl benzene

Answer 1

Answer: (C)

mesitylene

Answer 2

Benzene is obtained by polymerisation of acetylene. $3CH\equiv \equiv CH\xrightarrow{Fe,\,\Delta }\underset{\text{Benzene}}{\mathop{{{C}_{6}}{{H}_{6}}}}\,$ Similarly, propyne on polymerisation, yields mesitylene (trimethyl benzene).