NaCl consists of two kinds of particles still it is considered pure substance. Justify

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Solution

Sodium chloride is a pure substance because it has a definite composition, NaCl, and cannot be broken down by physical means.

It is not a mixture of sodium and chlorine, but is formed by the chemical bonding between ions formed from sodium and chlorine atoms, and has its own unique properties, different from either sodium or chlorine.

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STATEMENT 1: A pure substance consists of a single type of matter.

STATEMENT 2: A pure substance consists of more than one type of matter.

STATEMENT 3: Milk is a not a pure substance.

STATEMENT 4: Pure substance has same chemical nature.

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