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Which reagent can be used to test for the presence of alkenes?
Which reagent can be used to test for the presence of alkenes?
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Practice Questions
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Q1
Which reagent can be used to test for the presence of alkenes?
Bromine water
Silver nitrate
Sodium hydroxide
Hydrochloric acid
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Bromine water is used to test for alkenes; it will decolorize in the presence of a double bond.
Questions & Step-by-step Solutions
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Q
Q: Which reagent can be used to test for the presence of alkenes?
Solution:
Bromine water is used to test for alkenes; it will decolorize in the presence of a double bond.
Steps: 5
Show Steps
Step 1: Understand that alkenes are compounds that have a double bond between carbon atoms.
Step 2: Know that bromine water is a solution of bromine in water, which is reddish-brown in color.
Step 3: When bromine water is added to a sample containing alkenes, a chemical reaction occurs.
Step 4: The double bond in the alkene reacts with bromine, causing the reddish-brown color to disappear.
Step 5: If the color of bromine water changes from reddish-brown to colorless, it indicates the presence of alkenes.
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