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Q.

Th CN ion and N2 are isoelectronic. But in contrast to CN, N, is chemically inert because of

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a

Low bond energy

b

Absence of bond polarity

c

Unsymmetrical electron distribution

d

Presence of more number of electrons in bonding orbitals

answer is B.

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Detailed Solution

The cyanide ions, CNand N2​ are isoelectronic, but in contrast to CN,N2​ is chemically inert because of the absence of polarity of bond. Cyanide ion is negatively charged but N2​ is neutral molecule.

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