Iron is not used alone as a catalyst in ammonia synthesis, because – McqOptions

MCQOPTIONS

1.	Iron is not used alone as a catalyst in ammonia synthesis, because
A.	its activity declines rapidly, if heated to above 520 C.
B.	it decomposes ammonia.
C.	it gets oxidised above 500 C.
D.	none of these.
Answer» B. it decomposes ammonia.

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