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Assertion (A) : When we blow into a test...

Assertion (A) : When we blow into a test - tube containing lime water ,it turns milky
Reason (R ) : This shows the presence of `CO_(2)` in the exhaled air .

A

Both A and R are true , and R is the correct explanation of A.

B

Both A and R are true , but R is not the correct explanation of A.

C

A is true but R is false .

D

A is false but R is true .

Text Solution

Verified by Experts

The correct Answer is:
C
When we blow air in lime water the `CO_(2)` present in the exhaled air turns (it milky). The milky colour is due to the formation of calcium carbonate.
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