Q 2663223145.     `K_1` and `K_2` are first and second ionisation constant of `H_2CrO_4` , `K_3` is dissociation constant for `NH_3` . Match the following :
Column IColumn II
(A) `0.1 M H_2CrO_4` (p) `pH= 7 + 1//2pK_2 -1//2pK_3`
(B) 0.1 M `KHCrO_4` (q) `pH= 7 + 1//2pK_2 + 1//log C`
(C) `M (NH_4 )_2 CrO_4` (r) `pH = 1//2pK_1 - 1//2logC`
(D) `0.1 M K_2CrO_4` (s) `pH = 1/2(pK_1 + pK_2)`


D

(A- r), (8- s), (C- p), (D- q)

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