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Effect of Smoking on Lungs

Assertion A :...

Question

Assertion (A) : Carbon monoxide when inhaled causes death.
Reason (R) : Carbon monoxide combines with haemoglobin.

A

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

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B

Both A and It are true but R is NOT the correct explanation of A.

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C

A is true but R is false.

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D

A is false but R is true.

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Solution

The correct option is A Both A and R are true and R is the correct explanation of A.
Carbon monoxide, when inhaled, combines with haemoglobin of blood to form carboxyhaemoglobin which inhibits the transport of oxygen.
Hence, option A is correct.

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