[Ar] 3d^(5) 4s^1 એ ....... ની પ્રથમ ઉત્ત...

[Ar] `3d^(5) 4s^1` એ ....... ની પ્રથમ ઉત્તેજિત અવસ્થાની ઇલેક્ટ્રોન રચના છે. (1) `Fe^(2+)` (2) `Co^(3+)` (3) `Mn^(+2)` (4) Cr

A

(1), (2)

B

(2), (3)

C

(2), (4)

D

(1), (4)

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The correct Answer is:

A

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