It is necessary to remove CO when ammonia is obtained by Haber’s process because-
1. CO reacts with N2 and decreases the rate of reaction.
2. CO reacts with H2 and decreases the rate of reaction
3. CO adversely affects the activity of the iron catalyst
4. CO reacts with ammonia and decreases the rate of reaction.
Subtopic:  Catalyst |
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The ester hydrolysis  remains slow in the beginning and becomes faster after sometime, because : 

1. Acid produced in the reaction acts as an auto-catalyst.
2. Acid produced in the reaction acts as a poison.
3. Alcohol acts as a negative catalyst in the reaction.
4. Both (2) and (3) 
Subtopic:  Catalyst |
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