Which reagent is used to test for the presence of alkenes?

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Question: Which reagent is used to test for the presence of alkenes?

Options:

Correct Answer: Both A and B

Solution:

Both bromine water and potassium permanganate can be used to test for alkenes, as they react with the double bond.

Which reagent is used to test for the presence of alkenes?

Which reagent is used to test for the presence of alkenes?

Step 1: Understand that alkenes are a type of hydrocarbon that contain a double bond between carbon atoms.
Step 2: Know that certain reagents can react with the double bond in alkenes.
Step 3: Learn that bromine water is one reagent that can be used to test for alkenes. It changes color when it reacts with the double bond.
Step 4: Recognize that potassium permanganate is another reagent that can test for alkenes. It also changes color when it reacts with the double bond.
Step 5: Conclude that both bromine water and potassium permanganate are effective tests for the presence of alkenes.

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