Match the conditions on left column with solution on right column.

Column – I		Column – II
A)	Has maximum $pH$  at the end point when titrated against $KOH$	P)	$C{H}_{3}COOH(K_a=2\times {10}^{-5})$
B)	Has minimum  $pH$ at the end point when titrated with  $KOH$	Q)	$HCN(K_a=5\times {10}^{-10})$
C)	Evolve maximum heat when treated with  $NaOH$	R)	$HF(K_a=5\times {10}^{-4})$
D)	Evolve equal amount of heat when titrated with strong acid or strong base	S)	$N{H}_3(K_b=2\times {10}^{-5})$