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JEE Main levelSingle correct optionDifficulty 2 of 3sc077

Which catalyst-process pair is wrongly matched?

AHydrogenation of vegetable oils: $V X_{2} O X_{5}$
BContact process: $V X_{2} O X_{5}$
CDeacon process: $CuCl X_{2}$
DOstwald process: Pt-Rh gauze

Answer: A

Vegetable oils are hydrogenated over finely divided nickel at about 473 K.

V X_{2} O X_{5}

is used in the contact process,

CuCl X_{2}

in the Deacon process, and Pt-Rh in the Ostwald process.

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