Hydrocarbons Question 275

Question: Which of the following is not an endothermic reaction [J & K 2005]

Options:

A) Dehydrogenation

B) Ethane to ethene

C) Combustion of propane

D) Change of chlorine molecule into chlorine atoms.

Show Answer

Answer:

Correct Answer: C

Solution:

The enthalpy of combustion i.e., $ \Delta H $ is always negative.

It means combustion is an exothermic reaction.



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