8.2 Organic chemistry isomerism — Chemistry STD 11 Science — Question

Statement $(I)$ : $A$ Buffer solution is the mixture of a salt and an acid or a base mixed in any particular quantities.

Statement $(II)$ : Blood is naturally occurring buffer solution whose $\mathrm{pH}$ is maintained by $\mathrm{H}_2 \mathrm{CO}_3 / \mathrm{HCO}_3$ concentrations.

In the light of the above statements, choose the correct answer from the options given below.

            $n$                $l$                 $m$                 ${m_s}$