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Compounds

Consider the ...

Question

Consider the list of following substances. How many of the following are pure substances?

Oxygen, fluorine, paints, hydrochloric acid, methane

A

1

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B

2

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C

3

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D

4

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Solution

The correct option is D 4
Pure substances contain particles of similar type. Generally, elements and compounds are the pure substances. Thus oxygen, fluorine, hydrochloric acid, and methane are pure substances. Paint is not a pure substance as it is a mixture of different particles.

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