Formic acid is a weak acid and hydrochloric acid is a strong acid. It shows that the :

Options

A. `[OH^(-)]` of 0.01 M HCl (aq.) will be less than that of 0.01 M HCOOH (aq.)
B. aolution containing 0.1 M NaOH (aq.) and 0.1 M MCOONa (aq.) is a buffer solution
C. pH of `10^(-9)` M HCl (aq.) will be approximately 7 at `25^(@)C`
D. ph of a solution formed by mixing equimolar quantities of HCOOH and HCl will be less than that of a similar solution formed HCOOH and HCOOONa

Answer

A,C,D