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Decreasing order of heat evolved upon ca...

Decreasing order of heat evolved upon catalytic hydrogenation of given reactants with a `H_2` (Pd/C) is :

A

b > c > a > d

B

d > a > c > b

C

d > c > a > b

D

c > b > c > d

Text Solution

Verified by Experts

The correct Answer is:
B
Most stable alkene less heat of hydrogenation.
`a to 4 alpha H ` Heat of hydrogenation ` to d gt a gt c gt b`
` b to 10 alpha H `
` c to 6 alpha H`
` d to 3 alpha H `
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MS CHOUHAN-HYDROCARBONS (ALKENES)-LEVEL-2
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