Question

Among ethane, ethene and ethyne the C – C bond energy is [ ]

a) Same in all three compounds b) Greater in ethyne

c) Greater in ethene d) Greater in ethane​

Answer 1

Answer:

option (b) is correct.

Explanation:

we know.,

bond energy directly proportional to bond order directly proportional to bond angle directly proportional to percentage of s- character inversely proportional to bond length.

so, ethane undergoes SP3 hybridization.

ethene undergoes Sp2 hybridization.

ethyne undergoes SP hybridization.

from above hybridizations, it is clear that percentage of the s- character is maximum in ethyne (SP).

so bond angle is maximum in ethyne.

so bond energy is more in ethyne.

(or)

Due to presence of the strongest triple bond between 2 carbon atoms in ethyne bond energy is high.

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Answer 2

Answer:

greater in ethane

Explanation:

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