D And F Block Elements Question 75
Atomic number of Cr and Fe are 24 and 26 respectively. Which of the following is paramagnetic due to the spin of electron
[CBSE PMT 2002]
Options:
A) $ {{[Cr{{(NH_3)}_6}]}^{+3}} $
B) $ [Fe{{(CO)}_5}] $
C) $ {{[Fe{{(CN)}_6}]}^{3-}} $
D) $ [Cr{{(CO)}_6}] $
Show Answer
Answer:
Correct Answer: A
Solution:
All metal carbonyls are diamagnetic; cyanide complexes are also diamagnetic.
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