Which of the following is a property of a pure substance?

It can be separated into two or more substance by physical means

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It is heterogeneous in nature

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It has a fixed chemical composition

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Its composition can be varied

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Solution

The correct option is C It has a fixed chemical composition
A pure substance consists of one type of particle and cannot be separated by physical means. It is a homogeneous substance with a fixed chemical composition. Hence option C is correct.

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Similar questions

STATEMENT 1: Elements cannot be broken down into simpler substances.

STATEMENT 2: Mixtures are homogenous and heterogenous in nature.

STATEMENT 3: Constituents of a compound can be separated by chemical means.

STATEMENT 4: A mixture has a variable composition.

Few properties are mentioned below. Specify the property as mixture or compounds:

STATEMENT 1: The constituents can be separated easily by physical means.

STATEMENT 2: Has a variable composition.

STATEMENT 3: The composition is always fixed.

STATEMENT 4: Shows entirely different properties from constituent elements.

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