Its HCl i guess. HCI does not exist (cannot) unless it is carbene :P
So, NaCN>NaCl>NH4Cl>HCl so option (B)
can be solved considering combinations SA/SB/WA/WB
The pH of 0.1 M solution of the following salts increases in the order :
(A) NaCI < NH3CI < NaCN < HCI
(B) HCI < NH4CI < NaCI < NaCN
(C) NaCN < NH4CI < NaCI < HCI
(D) HCI < NaCI < NaCN < NH4CI
Its HCl i guess. HCI does not exist (cannot) unless it is carbene :P
So, NaCN>NaCl>NH4Cl>HCl so option (B)
can be solved considering combinations SA/SB/WA/WB
i know it was a silly dbt ..but wanted to confirm it ..becoz it was put up by manish sir ........so my expectations went sky high [1]
and yes answer will be B