Question

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

• A. Not a buffer solution with $pH<7$
• B. Not a buffer solution with $pH>7$
• C. A buffer solution with $pH<7$
• D. A buffer solution with $pH=7$

Answer 1

The correct option is A Not a buffer solution with $pH<7$

$HCl$ is strong acid so it cannot make a buffer and $HCl$ with $NaCl$ have $pH<7$.