Question

DE (c) Higher ) 12. The boiling points of the halogens: (a) increases down the group (c) decreases down the group (b) remains constant (d) cannot be predicted​

Answer 1

Answer:

Halogens are non-polar species, hence London dispersion forces act among them and these forces are directly proportional to molecular weight.

→ London dispersion forces ∝ B.P. and M.P. in such non-polar species.

Explanation:

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Answer 2

Answer:

The melting points and boiling points of the halogens increase going down group 7. This is because, going down group 7: the molecules become larger. more energy is needed to overcome these forces