Multiple choice

Directions: The following question has four choices out of which ONLY ONE is correct.

Find the wrong statement regarding the factors affecting the chemical reactions.

  1. The rate of photochemical reaction is independent of radiations.

  2. A catalyst increases the rate of a chemical reaction at a particular temperature only.

  3. The rate of chemical reaction is directly proportional to the concentration of the reactants.

  4. The rate of chemical reaction depends on number of collisions.
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A Correct answer
Explanation

The rate of photochemical reaction increases by absorption of photons of certain radiations.

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