The catalytic oxidation of ammonia gas is done as per the set up below.

The catalytic oxidation of ammonia gas is done as per the set up below.

a) Name the catalyst used in the above reaction.
b) After sometime, brown fumes are formed in the flask. Explain briefly how this
observation occurs.
c) Why does the metal catalyst stay red hot for some time?

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a) Pt or copper
(b) NO formed is oxidized by O₂ to NO₂ which is brown
(c) The reaction is exothermic

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sharon kalunda answered the question on May 13, 2019 at 12:17

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