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Q

Among the following, the molecule expected to be stabilized by anion formation is :

$C_{2},O_{2},NO,F_{2}$

• Option 1)

$C_{2}$

• Option 2)

$F_{2}$

• Option 3)

$NO$

• Option 4)

$O_{2}$

Views

$C_{2}^{-},F_{2}^{-},O_{2}^{-},NO^{-}$

we know , stability of molecules $\propto$ Bond order .

In $C_{2}^{-}$ , the $e^{-}$ enters in $6\; 2\rho z$ orbital

So the bond order $=\frac{N_{b}-N_{a}}{2}$ will increase by $0.5$

So, the stability would increase.

Option 1)

$C_{2}$

Option 2)

$F_{2}$

Option 3)

$NO$

Option 4)

$O_{2}$

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