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

Solution

## The correct option is C absence of bond polarityThe 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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