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The cyanide ion CN - and the nitrogen molecule N 2 are isoelectronic. However, in contrast to CN - ,   N 2 is chemically inert due to:

Options

  1. AUnsymmetrical electron distribution
  2. BLow bond energy
  3. CAbsence of bond polarity
  4. DPresence of greater number of electrons in bonding

Correct answer

C. Absence of bond polarity

Step-by-step solution

CN - ion in a free state is very reactive. N ≡ N ( N 2 molecule) Bond dissociation energy is very high, hence, it is chemically inert.

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