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Types of Redox Reactions

Which one of ...

Question

Which one of the following is not a chemical change?

A

Formation of curd

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B

Ripening of banana

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C

Sublimation of naphthalene

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D

Corrosion of photo frame

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Solution

The correct option is C
Sublimation of naphthalene

Sublimation of naphthalene is a physical change since no new substances are formed during the process and the chemical composition of naphthalene remains the same.

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