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Halogens are all coloured because...

Halogens are all coloured because

A

In their molecules the outer electrons are excited to higher energy levels by absorption of visible light

B

Their atoms absorb energy causing the excitation of outer electron to higher energy level

C

Their atoms have higher electronegativity

D

Their atoms have high electron affinity

Text Solution

Verified by Experts

The correct Answer is:
A
Visible light is absorbed and the complementary colour is emitted.
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