Published by:
CGP EDU Academic Team
Published on: August 14, 2026
In this type of questions, a statement of assertion 
is followed by a statement of reason
(R). Mark the correct choice as:
Assertion : All halogens are coloured.
Reason : The halogens absorb visible light.
Text Solution
Verified by ExpertsThe correct answer is:
A
All the halogens are coloured. The colour gets denser with the increase in atomic number
from fluorine to iodine. The colour is due to the absorption of energy from visible light by their molecules on excitation of outer electrons to higher energy levels.
F Cl Br Cl
Yellow Greenish Reddish Deep
Yellow brown violet
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