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Which of the following are isoelectronic...

Which of the following are isoelectronic species ?
`overset(o+)(CH_(3))(I), overset(ɵ)(NH_(2))(II), overset(o+)(NH_(4))(III)` and `NH_(3) (IV)`

A

II, III and IV

B

I, II and III

C

I, II and IV

D

II and I

Text Solution

Verified by Experts

The correct Answer is:
A
No. of electorns in `overset(o+)(C )H_(3) (I) = 6+3 -1 = 8`
`{:("No. of electrons in" overset(ɵ)(NH_(2)) (II) = 7+2+1=10),("No. of electrons in" overset(o+)(NH_(4))(III) = 7+4-1=10),("No. of electrons in" NH_(3) (IV) = 7 + 3 = 10):}]` II, III and IV are iso-electronic
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