D-And F-Block Elements Ques 409

Question: Which of the following element has maximum first ionisation potential

[Pb. CET 2002]

Options:

A) V

B) Ti

C) Cr

D) Mn

Show Answer

Answer:

Correct Answer: D

Solution:

The first ionization energies of $ Ti,V,Cr\ \text{and }Mn $ are 656, 650, 652 and 717 kJ/mole respectively.

I.E. increase in a period from $ L\to R $ hence, manganese has maximum first ionisation potential.



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