Which one of the following can be purified by sublimation?
A
F2
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B
Cl2
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C
Br2
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D
I2
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Solution
The correct option is DI2
In the sublimation, the solids substance converts into vapours directly. Iodine is found in the solid state while F2 and Cl2 are found in the gaseous state and Br2 is found in the liquid state.