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Chemistry
Which of the following is/are inner orbital complex as well as paramagnetic with magnetic moment equal to 3.78 (approx) ?
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Q. Which of the following is/are inner orbital complex as well as paramagnetic with magnetic moment equal to $3.78$ (approx) ?
The d-and f-Block Elements
A
$\left[ Co ( OX )_{3}\right]^{3-}$
14%
B
$\left[ Cr \left( NH _{3}\right)_{6}\right]^{3+}$
52%
C
$\left[ Fe \left( H _{2} O \right)_{5} NO \right]^{2+}$
23%
D
$\left[ Zn \left( NH _{3}\right)_{6}\right]^{2+}$
10%
Solution:
$Cr ^{+3}=3 d ^{3}$
$d ^{2}\, sp ^{3}, \mu_{ M }=3.78\, B.M$
