Question

Assertion :For the reaction $RCl+NaOH\left(aq\right)\to ROH+NaCl$, the rate of reaction is reduced to half on reducing the concentration of RCl to half. Reason: The rate of the reaction is represented by k[RCl], i.e., it is a first order reaction.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Assertion is incorrect but Reason is correct

Answer 1

The correct option is C Assertion is correct but Reason is incorrect

For the reaction $RCl+NaOH\left(aq\right)\to ROH+NaCl$ , the rate of reaction is reduced to half on reducing the concentration of $RCl$ to half.

The rate of reaction is represented by rate $=k\left[RCl\right]\left[NaOH\right]$, i.e., it is a second order reaction. Hence, the assertion is correct but Reason is incorrect.