The `P^(H) ` of 0. 1M solution of the following compounds increases in the order

Options

A. ` NaCl lt NH_4 Cl lt NaCN lt HCl`
B. ` HCl lt NH_4 Cl lt NaCl lt NaCN`
C. ` Na CN lt NH_4 Cl lt NaCl lt HCl `
D. ` HCl lt NaCl lt NH_4 Cl lt NaCN `

Answer

B

Explanation

pH of HCl = 1, pH of NaCl =7 ,
pH of `NH_4Cl lt 7 , pH ` of NaCN ` gt 7`