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Effect of Change of Pressure on State Change of Matter

Physical chan...

Question

Physical change alters chemical properties and chemical change alters physical properties.

Say True or False.

A

True

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B

False

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Solution

The correct option is B
False

Physical change alters physical properties of a substance and chemical change alters chemical properties of a substance.

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A physical change is a change that involves only a change in the physical state of matter. Its chemical properties remain the same. Usually increasing the temperature or applying pressure or both bring about a physical change. On reversing the condition, that is reducing the temperature or reducing the pressure or both, the original state of matter is restored. In other words, physical changes are reversible.

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In a chemical change, the properties that change are :

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Effect of Change of Pressure on State Change of Matter

Standard IX Chemistry

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