Chemistry
Assertion - Naphthalene balls disappear from the cupboard after sometime.
Reason - Naphthalene balls undergo evaporation.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Phy & Chem Changes
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Answer
A is true but R is false.
Reason — A is true as naphthalene balls gradually vanish because they change directly from solid to gas.
R is false as naphthalene changes solid into gas directly, which is called sublimation, not evaporation.
Therefore, A is true but R is false is the correct option.
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