Pure ozone gas has which colour?
APale blue
BDeep red
CBright green
DPale yellow
Answer & Solution
Correct answer: A. Pale blue
1. The liquid is dark blue and the solid violet-black.
2. The gas is lighter in shade than these.
3. It is a pale blue gas.
_Source: NCERT Class 12 Chemistry, Chapter 7, The p-Block Elements._
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