Heating of an ore below its melting point in presence of excess of air is called

Question: A catalyst loses its activity due to
[A].

loss in surface area of the active component.

[B].

agglomeration of metal particles caused by thermal sintering of the solid surface.

[C].

covering of the catalytic active sites by a foregin substance.

[D].

all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.