intermolecular forces exist between molecules of group 7 elements. Which of the following sequence represent the strength of the intermolecular forces?
a.Cl2>Br2>I2
b.Br2>Cl2>I2
c.Cl2<Br2<I2
d.I2<Br2<Cl2
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answer:
The bond energies of Chlorine, Bromine, and Iodine decreases down the group as the size of the atom increases. The bond energy of Fluorine, is, however, lower than those of Chlorine and Bromine because of interelectronic repulsions present in the small atom of Fluorine.
∴ Bond Energy order is Cl2 >Br2 >F2 >I2 explanation:
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