Zn(OH)2(s) ⇌ Zn(OH)2(aq.) K1 = 10^-6 M Zn(OH)2(aq.) ⇌ Zn(OH)+ + OH- K2 = 10^-7 M Zn(OH)+ ⇌ Zn^2+ + OH- K3 = 10^-4 M Zn(OH)2(aq.) + OH- ⇌ Zn(OH)3- K4 = 10^3 M^-1 Zn(OH)3- + OH- ⇌ Zn(OH)4^2- K5 = 10 M^-

Question

Zn(OH)2(s) ⇌ Zn(OH)2(aq.)  K1 = 10^-6 M
Zn(OH)2(aq.) ⇌ Zn(OH)+ + OH-  K2 = 10^-7 M
Zn(OH)+ ⇌ Zn^2+ + OH-  K3 = 10^-4 M
Zn(OH)2(aq.) + OH- ⇌ Zn(OH)3-  K4 = 10^3 M^-1
Zn(OH)3- + OH- ⇌ Zn(OH)4^2-  K5 = 10 M^-1
Which of the following options are correct about solubility of zinc hydroxide at various pH.

Prashant Kotian · Accepted Answer

Correct answer: ABC.         2 2 3 4 aq s Zn OH Zn OH Zn Zn OH Zn OH                              2 1 2 3 2 1 1 4 1 1 4 5 2 K K K K K K K OH K K K K OH OH OH                         

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