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

(a) :- HCl is a strong acid and its salt do not form bufter solution. As the resultant solution is acidic, hence pH is less than 7.