Which reagent is commonly used to test for the presence of alkenes?
Correct Answer: Bromine water
- Step 1: Understand what alkenes are. Alkenes are a type of hydrocarbon that contain at least one double bond between carbon atoms.
- Step 2: Learn about bromine water. Bromine water is a solution of bromine in water, and it has a reddish-brown color.
- Step 3: Know the test for alkenes. When bromine water is added to a substance that contains alkenes, the double bond reacts with bromine.
- Step 4: Observe the color change. If alkenes are present, the reddish-brown color of bromine water will disappear, indicating a positive test.
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