Ncert Exercises & Solutions

Select the correct option based on statements below:

Assertion (A):	The order of the reaction can be zero or fractional.
Reason (R):	We cannot determine order from the balanced chemical equation.

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.	(A) is true but (R) is false.
4.	Both (A) and (R) are false.

HINT: Order of the reaction is an experimental value.

Explanation:

The order of reaction can be zero or fractional as the order of the reaction is directly related to some of the power of reactants. The reason is a correct statement but not a correct explanation. The order of the reaction is an experimental value and cannot be determined from the balanced chemical equation.

Hence, both assertion and reason are correct, but reason does not explain the assertion

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