Ncert Exercises & Solutions

CO is isoelectronic with-

1. ${NO}^{+}$

2. $N_{2}$

3. ${SnCl}_{2}$

4. ${NO}_{2}^{-}$

Hint: Isoelectronic species has same number of electrons.

Explanation: Isoelectronic species are known as atoms or ions that have the same number of electrons.

Number of electrons present in CO $= 6 + 8 = 14$

Then, In

{NO}^{+} = 7 + 8 - 1 = 14

N_{2} = 7 + 8 - 1 = 14

{SnCl}_{2} = (very high) 50 + 17 \times 2 = 50 + 34 = 84

{NO}_{2}^{-} = 7 + 16 + 1 = 24

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