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Which of the following types of reactions takes place between C2H4 and the halog...


Question

Which of the following types of reactions takes place between C2H4 and the halogens?

Options

A)
Substitution
B)
Polymerization
C)
Addition
D)
Saponification
E)
Oxidation

The correct answer is C.

Explanation:

The reaction between C2H4 (ethylene) and halogens is an addition reaction, which is the correct answer (Option C). In an addition reaction, the reactants (in this case, ethylene and a halogen) combine to form a single product without the elimination of any other molecules.

Ethylene is an unsaturated hydrocarbon, which means it has a double bond between two carbon atoms. The presence of this double bond allows it to react with halogens like chlorine (Cl2) or bromine (Br2). The double bond breaks, and the halogen atoms bond with the carbon atoms, resulting in a halogenated hydrocarbon.

For example, when ethylene reacts with chlorine, the product is 1,2-dichloroethane (C2H4Cl2):

\(C_2H_4 + Cl_2 \rightarrow C_2H_4Cl_2\)

Other types of reactions mentioned in the options, such as substitution, polymerization, saponification, and oxidation, do not apply to the reaction between ethylene and halogens.


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