Co-Ordination Compounds Question 167

Question: Match List I (complex ions) with List II (CFSE) and select the correct answer using the codes given below the list;
List I List II
(P) [Mn(H2O6)]2+ 1. 0.6 Δ0
(Q) [Cr(H2O6)]2+ 2. 0.4 Δ0
(R) [Fe(H2O6)]2+ 3. 0
(S) [Cr(H2O6)]3+ 4. 1.2 Δ0

Code:

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

Show Answer

Answer:

Correct Answer: A

Solution:

CFSE=(0.4x+0.6y)

Δ0+2P PMn2+ d5 t2g3eg2 0 QCr2+

d4 t2g3eg1 0.6Δ0 RFe2+ d6 t2g4eg2 0.4Δ0 SCr3+ d3 t2g3eg0 0.2Δ0



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