Atomic Structure and Periodicity
Question 1 of 30
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An unknown hydrocarbon has empirical formula CH2. It decolorizes bromine water rapidly at room temperature without ultraviolet light. Which conclusion is most justified?
Select one option.
A
It must be an alkane because CH2 is the simplest hydrocarbon unit.
B
It must be methane because methane reacts with bromine water.
C
It must be an alkyne because CH2 indicates a triple bond.
D
It is unsaturated and could be an alkene or a cycloalkane, but the bromine water result strongly supports an alkene.
E
It must be ethanol because ethanol decolorizes bromine water.
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