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Question

The cyanide ion, $$CN^-$$and $$N_2$$ are isoelectronic, but in contrast to $$CN^-, N_2$$ is chemically inert, because of :


A
low bond energy
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B
absence of bond polarity
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C
unsymmetrical electron distribution
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D
presence of more number of electrons in bonding orbitals
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Solution

The correct option is C absence of bond polarity
The cyanide ions, $$ CN^- $$and $$ N_2 $$ are isoelectronic, but in contrast to $$ CN^- , N_2 $$ is chemically inert because of the absence of polarity of bond. Cyanide ion is negatively charged but $$N_2$$ is neutral molecule.

Chemistry

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