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Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by:

Option: 1

Oxidation


Option: 2

Cracking


Option: 3

Distillation under reduced pressure


Option: 4

Hydrolysis


Answers (1)

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The process of breaking higher hydrocarbons with high boiling points into a variety of lower hydrocarbons that are more volatile (low boiling), is called cracking (or pyrolysis). For example, a higher hydrocarbon C10H22 splits according to the reaction.

                    C_{10}H_{22}\overset{heat\ 770K}{\rightarrow} C_{8}H_{18} + C_{2}H_{4}


The process of cracking or pyrolysis increases the relative amounts of the lower hydrocarbons, which exists in a gaseous state, while higher hydrocarbons exist in the liquid or solid state.

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shivangi.bhatnagar

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