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Coordination Complexes

Alkynes are m...

Question

Alkynes are more reactive than alkene towards catalytic hydrogenation. State whether the statement is True or False

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Solution

Alkynes suffer less steric hindrance during adsorption on the surface of metal catalyst.
Hence, alkynes are more reactive than alkene towards catalytic hydrogenation.

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Similar questions

Q. An alkene is more reactive than an alkyne towards electrophilic addition of

H B r

H C l

to alkyne, does not react further with

H C l

H B r

till all alkyne are exhausted.
if true enter 1, if false enter 0.

Q. Identify the incorrect statement/statements :
(i) Alkynes are more reactive than alkenes towards electrophilic addition reaction
(ii) Alkynes are less reactive than alkenes towards electrophilic addition reaction
(iii) Alkynes decolourise

B r_{2}

water
(iv) Addition of

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to alkenes in presence of peroxide proceeds via Markovnikov's rule

Q. Statement-I : Alkynes are more reactive than alkenes towards electrophilic reagents like

H^{+}

.
Because
Statement-II : The alkyl carbocation formed from alkene is more stable than the vinyl carbocation formed from alkyne.

Q. Identify the incorrect statement/statements :
(i) Alkynes are more reactive than alkenes towards electrophilic addition reaction
(ii) Alkynes are less reactive than alkenes towards electrophilic addition reaction
(iii) Alkynes decolourise

B r_{2}

water
(iv) Addition of

H B r

to alkenes in presence of peroxide proceeds via Markovnikov's rule

Q. Alkynes are less reactive than alkenes towards addition of

B r_{2}

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