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A catalyst lowers the activation energy of forward and reverse reactions by:
AThe single amount
BThe steady amount
CThe same amount
DThe smaller amount
Answer & Solution
Correct answer: C. The same amount
1. If it favoured one direction, the balance would move.
2. The observed fact is that it does not.
3. Catalyst lowers the activation energy for the forward and reverse reactions by exactly the same amount.
4. So the answer is the same amount.
_Source: NCERT Class XI Chemistry Part I, Unit 6 'Equilibrium'_
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