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Measures to Reduce Air Pollution

nanoparticles...

Question

_______ nanoparticles are widely used in sunscreens and cosmetics, stain resistant fabrics and dirt repellent paints.

A

The metal oxide

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B

Gold

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C

Silver

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D

The metal sulphide

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Solution

The correct option is A The metal oxide
The metal oxide nanoparticles are widely used in sunscreens and cosmetics, stain-resistant fabrics and dirt repellent paints. They are used in sunscreen and cosmetics because they reflect the visible light and absorb UV light efficiently.

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Measures to Reduce Air Pollution

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