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Questions  

The correct set of quantum numbers for the unpaired electron of chlorine atom is

a
n l m
2 1 0
b
n l m
2 1 1
c
n l m
3 1 0
d
n l m
3 0 0

detailed solution

Correct option is C

Electronic configurtionof Chlorine is 

Cl = 1s2 2s2 2p6 3s2 3p5.

n=3 

l= 1 

m= -1 , 0 , +1

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