Questions: Multiple Choice Question Reaction of an alkene with the halogens Br2 or Cl2 will result in the addition of halogen atom(s) to the double bond C atoms, producing a(n) 1, alkyl halide 2, vicinal dihalide 1, hydrogen halide 2, geminal dihalide

Multiple Choice Question Reaction of an alkene with the halogens Br2 or Cl2 will result in the addition of halogen atom(s) to the double bond C atoms, producing a(n) 1, alkyl halide 2, vicinal dihalide 1, hydrogen halide 2, geminal dihalide

Transcript text: Multiple Choice Question Reaction of an alkene with the halogens $\mathrm{Br}_{2}$ or $\mathrm{Cl}_{2}$ will result in the addition of $\qquad$ halogen atom(s) to the double bond $C$ atoms, producing $a(n)$ $\qquad$ 1, alkyl halide 2, vicinal dihalide 1, hydrogen halide 2, geminal dihalide

Solution

Solution Steps

Step 1: Understanding the Reaction

When an alkene reacts with halogens such as $\mathrm{Br}_2$ or $\mathrm{Cl}_2$, the halogen molecules add across the carbon-carbon double bond. This reaction is known as halogenation.

Step 2: Identifying the Product

In halogenation, each carbon atom of the double bond receives one halogen atom. This results in the formation of a dihalide where the halogen atoms are added to adjacent carbon atoms.

Step 3: Determining the Type of Dihalide

When halogen atoms are added to adjacent carbon atoms, the product is known as a vicinal dihalide. This is because "vicinal" refers to substituents on adjacent atoms.

Final Answer

The reaction of an alkene with $\mathrm{Br}_2$ or $\mathrm{Cl}_2$ results in the addition of two halogen atoms to the double bond carbon atoms, producing a vicinal dihalide. Therefore, the answer is:

\[ \boxed{\text{2, vicinal dihalide}} \]

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