D-And F-Block Elements Ques 322

Question: In first transition series, the melting point of $ Mn $ is low because

[MP PMT/PET 1988]

Options:

A) Due to $ d^{10} $ configuration, metallic bonds are strong

B) Due to $ d^{7} $ configuration, metallic bonds are weak

C) Due to $ d^{5} $ configuration, metallic bonds are weak

D) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

Due to $ d^{5} $ configuration, metallic bonds are weak.

$ d^{5} $ Orbital is half filled as a result $ 3d $ electrons are more tightly held by the nucleus and this reduces the de-localization of electrons resulting in weaker metallic bonding.



NCERT Chapter Video Solution

Dual Pane