Predict the product of the following reaction. Draw all hydrogen atoms

hydrogen-atoms

#1

Predict the product of the following reaction. Draw all hydrogen atoms.

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Concepts and reason
The addition of halogens in ordinary temperature, in the absence of exposure to UV light to yield vicinal dihalides.
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This reaction is proceeded through an ionic mechanism which involves two steps.

Fundamentals
General mechanism of the halogenation reaction:-

Step 1
As the halogen molecules image approach the π-electrons of the alkene, they gets polarized. The polarized halogen molecule undergoes a heterolytic cleavage, reacting as a positive halogen ion to the alkene and forms a cyclic halonium ion.

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Step 2
The nucleophilic attack by the halide ion formed in step 1 on the halonium ion from the side opposite to that of the bulky halogen portion causes the opening of the three-member ring and the formation of the vicinal dihalides.
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Answer:

Heterolytic cleavage of image
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Formation of halonium ion,
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Explanation:
As the chlorine molecules approach the π-electrons of the alkene, they are polarized. Then, the chlorine molecules undergo a heterolytic cleavage and react with an alkene to form cyclic halonium ion and chloride ion.

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Explanation:
The nucleophilic attack by the chloride ion formed in step 1 on the halonium ion from the side opposite to that of the bulky chlorine portion causes the opening of the three-membered ring and the formation of vicinal dihalide. The addition is trans under these conditions.