Question

Benzene is one of the compounds used as octane enhancers in unleaded gasoline. It is manufactured by the catalytic conversion of acetylene to benzene. $3C_2{H}_2\to C_6{H}_6$
Would this reaction be most useful commercially if K were about 0.01, about 1, or about 10?

• A. 0.01
• B. 1
• C. 10
• D. None of these

Answer 1

The correct option is C 10

For the process to be used commercially it should be feasible for us to form benzene.
1) in option 1 the amount of benzene formed will be much less than acetylene present.
2) in option 2 the amount of benzene formed will be equal to that of acetylene at equilibrium.
3) in option 3 the amount of benzene present at equilibrium will be more than the amount of acetylene at equilibrium making the reaction feasible.
The correct answer is option C.