$1 \mathrm{M} \mathrm{NaCl}$ and $1 \mathrm{M} \mathrm{HCl}$ are present in an aqueous solution. The solution is :

The solution is acidic because of the presence of hydrogen chloride, $\mathrm{HCI}$. Thus, the value of ph will be less than 7 to make it acidic.

The solution is not a buffer solution.