SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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State change is always a ____ ____
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Physical change
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Physical property
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Chemical change
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Chemical property
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Explanation:
Detailed explanation-1: -When a material undergoes a change in shape, size or state it is called a physical change. Generally, no new substance is formed in a physical change. For example change of state of water from solid to liquid or liquid to gas is a physical change as only state of water is changing and no new substance is formed.
Detailed explanation-2: -In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed.
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