Question

Define a pure substance. How many types of pure substances do you know?​

Answer 1

Answer:

Any substance is said to be pure if and only if it is made up of single type of particles means all the particles of that substance should be of same chemical nature. For example water, sugar, salt, Sodium, Tin etc. There are two types of pure substances that are Elements and Compounds.

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Answer 2

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➪ There are two types of pure substances that are Elements and Compounds. Examples of elements are: Iron, Silver, Gold, Mercury etc...

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