Aqueous bromine is added to two test-tubes. Excess hexene is added to one test-tube. Excess hexane is added to the second test-tube. Which row describes the observation in each test-tube?
A.
B.
C.
D.
Exam No：0620_s24_qp_13 Year：2024 Question No：37
Answer:
B
Knowledge points:
12.3.1. Describe how paper chromatography is used to separate mixtures of soluble coloured substances, using a suitable solvent
12.3.2.1. unknown substances by comparison with known substances
12.3.2.2. pure and impure substances
12.3.3. Describe how paper chromatography is used to separate mixtures of soluble colourless substances, using a suitable solvent and a locating agent
12.3.4. State and use the equation
Solution:
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