Question

mention one important use of nonmetals.
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Answer 1

Explanation:

Nonmetals are plentiful and useful. These are among the most commonly used: Oxygen, a gas, is absolutely essential to human life. Not only do we breathe it and use it for medical purposes, but we also use it as an important element in combustion.

Answer 2

Chlorine is used in bleaching powder and liquid bleach, which are used for cleaning purposes. Chlorine is also very efficient disinfectant, hence added in public water to kill disease causing pathogens. Noble gases such as neon, argon, krypton are used in different types of lights.

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