Multiple choice

Mesitylene is formed when

  1. 2 molecules of acetylene react with sulphur

  2. 3 molecules of acetylene are catalysed by red hot tube

  3. 4 molecules of acetylene are catalysed by nickel cyanide under pressure

  4. 3 molecules of propyne are passed through red hot tube

  5. 2 molecules of acetophenone are catalysed in the presence of aluminium tetraoxide
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This option is correct because three molecules of propyne, when passed through the red hot tube, cyclic polymerisation  takes place,  and forms 1,3,5 trimethylbenzene. It is also known as mesitylene.

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