Which of the following is a method for the preparation of alkenes?

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Question: Which of the following is a method for the preparation of alkenes?

Options:

Correct Answer: Dehydrohalogenation

Solution:

Dehydrohalogenation is a common method for preparing alkenes from alkyl halides.

Which of the following is a method for the preparation of alkenes?

Which of the following is a method for the preparation of alkenes?

Step 1: Understand that alkenes are hydrocarbons with at least one double bond between carbon atoms.
Step 2: Know that alkyl halides are compounds that contain carbon, hydrogen, and a halogen (like chlorine or bromine).
Step 3: Learn about dehydrohalogenation, which is a chemical reaction that removes a halogen and a hydrogen atom from an alkyl halide.
Step 4: Realize that when you remove these atoms, a double bond is formed between the carbon atoms, resulting in an alkene.
Step 5: Remember that this method is commonly used in organic chemistry to synthesize alkenes.

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