Co-Ordination Compounds Question 282

Question: Which of the following paramagnetic ions would exhibit a magnetic moment (spin only) of the order of 5 BM? (At. Nos. Mn = 25, Cr = 24, V = 23, Ti =22)

Options:

A) Mn2+

B) Ti2+

C) V2+

D) Cr2+

Show Answer

Answer:

Correct Answer: D

Solution:

Ion Electronic Configuration Magnetic moment (n(n+2))
Cr2+ d4 4(4+2)=4.9
Mn2+ d5 5(5+2)=5.8
Ti2+ d2 2(2+2)=2.4
V2+ d3 3(3+2)=3.8

Hence Cr2+ has magnetic moment of the order of 5 B.M.



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