NEETChemistryIonic Equilibrium
Match List I with List II, where s represents the molar solubility of the salt in water. List I (Salt) List II ( K_ sp expression) (A) BaSO ₄ (I) 4s^3 (B) CaF ₂ (II) 27s^4 (C) Ag ₃ PO ₄ (III) 108s^5 (D) Bi ₂ S ₃ (IV) s^2 Choose the correct answer from the options given below:
Options
- A(A)-(IV), (B)-(II), (C)-(I), (D)-(III)
- B(A)-(I), (B)-(IV), (C)-(II), (D)-(III)
- C(A)-(IV), (B)-(I), (C)-(II), (D)-(III)
- D(A)-(IV), (B)-(I), (C)-(III), (D)-(II)
Correct answer
C. (A)-(IV), (B)-(I), (C)-(II), (D)-(III)
Step-by-step solution
For BaSO ₄ (AB type): BaSO ₄ Ba ²⁺ + SO ₄²⁻ K_ sp = (s)(s) = s^2 For CaF ₂ (AB₂ type): CaF ₂ Ca ²⁺ + 2 F ^- K_ sp = (s)(2s)^2 = 4s^3 For Ag ₃ PO ₄ (A₃ B type): Ag ₃ PO ₄ 3 Ag ^+ + PO ₄³⁻ K_ sp = (3s)^3(s) = 27s^4 For Bi ₂ S ₃ (A₂ B₃ type): Bi ₂ S ₃ 2 Bi ³⁺ + 3 S ²⁻ K_ sp = (2s)^2(3s)^3 = (4s^2)(27s^3) = 108s^5 Thus, the correct matching is (A)-(IV), (B)-(I), (C)-(II), (D)-(III). Answer: (A)-(IV), (B)-(I), (C)-(II), (D)-(III)