Q.

Number of ‘d’ electrons in ‘Mn’ is equal to

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a

number of ‘d’ electrons in Cr

b

number of ‘p’ electrons in Cl

c

number of ‘s’ electrons in K

d

number of ‘p’ electrons in N

answer is A.

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Detailed Solution

Mn(Z=25)….1s22s22p63s23p64s23d5;Cr(Z=24)….1s22s22p63s23p64s13d5;
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Number of ‘d’ electrons in ‘Mn’ is equal to