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Question

When heated NH3 is passed over CuO, evolved gas is :

A
N2
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B
N2O
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C
HNO3
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D
NO2
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Solution

The correct option is A N2

When ammonia is heated and passed over solid copper(II)oxide at high temperatures, nitrogen gas is formed.

2NH3(g)+3CuO(s)N2(g)+3Cu(s)+3H2O(g)

Hence option A is correct.


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