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NEET levelSingle correct optionDifficulty 1 of 3sc060

In the Ostwald process for nitric acid, the catalyst used in the oxidation of ammonia is

Aplatinum (platinum-rhodium gauze)
Bfinely divided iron with molybdenum promoter
Cvanadium pentoxide
Dnickel

Answer: A

Ammonia is oxidised to

NO

over platinum gauze at about 800

^{\circ}

C. Iron is used in the Haber process and

V X_{2} O X_{5}

in the contact process.

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