Coordination CompoundHard

Question

Match List-I (complex ions) with List-II (CFSE) and select the correct answer using the codes given below the lists :
        List-I                              List-II
(P) [Mn(H2O)6]2+                1. 0.6 ᐃ0
(Q) [Cr(H2O)6]2+                 2. 0.4 ᐃ0
(R) [Fe(H2O)6]2+                 3. 0
(S) [Cr(H2O)6]3+                 4. 1.2 ᐃ0

Options

A.(P) → 3
(Q) → 1
(R) → 2
(S) → 4
B.(P) → 1
(Q) → 2
(R) → 3
(S) → 4
C.(P) → 4
(Q) → 3
(R) → 2
(S) → 1
D.None of these

Solution

(P) 3 × (- 0.4) + 2 × 0.6 = 0.
(Q) 3 × (- 0.4) + 1 × 0.6 = - 0.6ᐃ0.
(R) 4 × (- 0.4) + 2 × 0.6 = - 0.4ᐃ0.
(S) 3 × (- 0.4) + 0 × 0.6 = - 1.2ᐃ0.

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