Three substances given below are kept in the open for a few days and some changes were observed-Coth balls BottlePQSWhich of the substances will show a chemical change-

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Byju's Answer

Standard VI

Chemistry

Irreversible Change

Three substan...

Question

Three substances given below are kept in the open for a few days and some changes were observed.

Which of the substances will show a chemical change?

Eggs

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Plastic bottle

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Both eggs & moth balls

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All eggs, plastic bottle and moth balls

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Solution

The correct option is A
Eggs

During a chemical change one substance reacts with another to undergo a change in chemical composition. Chemical change brings change in the chemical properties of matter and we get new substances. Here the eggs rot and release a foul odour. The moth balls become smaller in size due to sublimation and the plastic bottle doesn't show any change, hence they are physical changes.

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