GATE 2024 Chemical Engineering, Q29 · Chemical Technology
The correct answers are A. Catalytic hydrocracking converts heavier hydrocarbons to lighter hydrocarbons.; B. Catalytic reforming converts straight-chain hydrocarbons to aromatics.; C. Cumene is manufactured by the catalytic alkylation of benzene with propylene..
Question
Which of the following statements with reference to the petroleum/petrochemical industry is/are correct?
Official answer: A. Catalytic hydrocracking converts heavier hydrocarbons to lighter hydrocarbons.; B. Catalytic reforming converts straight-chain hydrocarbons to aromatics.; C. Cumene is manufactured by the catalytic alkylation of benzene with propylene.
Why
GATE 2024 official key: (A, B, C). Hydrocracking breaks heavy hydrocarbons into lighter ones (A); reforming converts paraffins/naphthenes to aromatics (B); cumene is made via benzene + propylene alkylation (C). Vinyl acetate is actually made from ethylene (not methane) + acetic acid over a Pd catalyst, so (D) is false.
Explanation cross-checked for consistency. Final answer matches the official IIT answer key.