The van der Waals forces in halogens increase in the order :
A
F2<Cl2<Br2<I2
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B
I2>Cl2>Br2>F2
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C
F2<Br2<I2<Cl2
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D
Br2<F2<Cl2<I2
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Solution
The correct option is AF2<Cl2<Br2<I2 The van der Waals forces in halogens increase in the order F2<Cl2<Br2<I2. This is the same order as that for the increase in the atomic size. Higher is the atomic size, higher will be the van der Waal's force.