Chemistry
Grade-8
Easy
Question
Which allotrope shows photochromic effect?
- Fullerene
- Diamond
- Graphite
- None of the above
Hint:
It is used as antioxidant.
The correct answer is: Fullerene
The correct option is a)Fullerene.
- Fullerene shows shows photochromic effect.
- Photochromism is the reversible conversion (photoswitch) of chemical species between two forms by the absorption of electromagnetic radiation (photoisomerization), the two forms have different absorption spectra.
- In layman language, this can be described as a reversible color change which occurs when exposed to light.
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