Question

Assertion :A basic solution has more hydrogen ions than an acidic solution. Reason: At ${25}^o$C, the product of $\left[H^{+}\right]$ x $\left[O{H}^{-}\right]$ = ${10}^{-14}$.

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

Answer 1

The correct option is D The Assertion is incorrect and the Reason is correct

The basic solution has more $\left[O{H}^{-}\right]$ ion than $\left[H^{+}\right]$ ion. Thus Assertion is incorrect.

Also, at ${25}^0$, the ionic product of water i.e. $\left[H^{+}\right]\times \left[O{H}^{-}\right]={10}^{-14}$

$\therefore$ The Assertion is incorrect but the Reason is correct.