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

1m-nacl-and-1m-hcl-are-present-in-an-aqueous-solution-the-solution

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

I have been asked this question in a national level competition.

This intriguing question comes from Buffering against pH changes in Biological Systems topic in section Water Basics of Biochemistry

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

Easy explanation: It is a neutral solution and its pH = 7.