Question

Match List I with List II

List-I (Conversion)		List-II  (Shape/geometry)
(A)	1 mol of H2O to O2	(I)	3F
(B)	1 mol of MnO-4 to Mn2+	(II)	2F
(C)	1.5 mol of Ca from molten CaCl2	(III)	1F
(D)	1 mol of FeO to Fe2O3	(IV)	5F

Choose the correct answer from the options given below:

• A. A-II, B-IV, C-I, D-III
• B. A-III, B-IV, C-I, D-II
• C. A-II, B-III, C-I, D-IV
• D. A-III, B-IV, C-II, D-I

Answer 1

The Correct Option is A

Correct option is (1) A-II, B-IV, C-I, D-III

4 OH⁻ → 2 H₂O + O₂ + 4 e⁻

For 2 moles of H₂O, 4F charge is required.

For 1 mole of H₂O, 4F/2 = 2F charge is required.

MnO₄⁻ → Mn²⁺

For 1 mole of MnO₄⁻, 5F charge is required.

Ca²⁺ + 2 e⁻ → Ca

For 1 mole of Ca²⁺ ion, 2F charge is required.

For 1.5 moles of Ca²⁺ ion, 2F × 1.5 = 3F charge is required.

2 FeO → Fe₂O₃

For 1 mole of FeO, 1F charge is required.