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Question

Identify the type of reaction.


A

Substitution reaction

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B

Addition reaction

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C

Polymerisation reaction

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D

Thermal cracking reaction

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Solution

The correct option is C

Polymerisation reaction


Different types of reactions are listed below:

(i) Substitution reaction: Reaction in which an atom or a group in a compound is replaced by another atom or a group.

(ii) Addition reaction: Reaction in which unsaturated carbon compounds reacts with other molecules to form saturated carbon compounds.

(iii) Polymerization: Process in which a large number of simple molecules combine to form the complex molecule.

(iv) Thermal cracking: Reaction in which hydrocarbons with high molecular masses, on heating in the absence of air, form hydrocarbons with lower molecular masses.

The given reaction is polymerization of monomer ethene to polyethene. The diagram below is representing the combination of ethene molecules to form polyethene.


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