Chemical Thermodynamics Question 84

Question: Which one of the following bonds has the highest average bond energy (kcal/mol) [CPMT 1994]

Options:

A) $ S=O $

B) $ C\equiv C $

C) $ C\equiv N $

D) $ N\equiv N $

Show Answer

Answer:

Correct Answer: D

Solution:

B.E of S==O,C≡≡C,C≡≡NandN≡≡N are 523,839,891 and 941kJ$mol^{−1}$ respectively.Thus, among the given molecules, N≡≡N has the highest bond energy.



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