MHT CET Chemistry question

Which one of the following has the smallest heat of hydrogenation per mole?

(A)1-butene
(B)Trans-but-2-eneCorrect
(C)Cis-but-2-ene
(D)Buta-1,3-diene

Answer: (B)

Solution

Heats of hydrogenation are about 127 (1-butene), 116 (trans-but-2-ene), 120 (cis-but-2-ene) and 239 kJ mol for buta-1,3-diene (which takes up two moles of

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-044218