Towards an electrophilic reagent :

Ethane is more reactive than ethyne

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Ethane is less reactive than ethyne

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Both have equal reactivity

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Reactivity cannot be predicted

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Solution

The correct option is A
Ethane is more reactive than ethyne

Alkynes are less reactive than alkene towards electrophilic reagent because in alkynes, C has more s – character

hence higher attraction for pi electrons

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Similar questions

Give reasons :
(a) Ethyne is more reactive than ethene.
(b) Ethene is more reactive than ethane.
(c) Hydrocarbons are excellent fuels.

Anisole is less reactive than phenol towards electrophilic substitution reactions. Why ?

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