- 1(current)
Q. No.Assertion (A): Emphysema is caused by cigarette smoking.
Reason (R): Cigarette smoking reduces the gaseous exchange area.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Cigarette smoking reduces the gaseous exchange area.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Respiratory Disorders: Part 1 |Â Respiratory Disorders: Part 2 |Â Respiratory Disorders - III |
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Assertion (A): Smoking leads to availability of less oxygen to the body.
Reason (R): In presence of CO, O2 binds less with Hb.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): In presence of CO, O2 binds less with Hb.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Respiratory Disorders: Part 1 |Â Respiratory Disorders: Part 2 |Â Respiratory Disorders - III |
 66%
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
Assertion (A): CO combines with Hb at the same point on Hb as does O2.
Reason (R): CO binds with Hb about 200 times faster than O2.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): CO binds with Hb about 200 times faster than O2.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Respiratory Disorders: Part 1 |Â Respiratory Disorders: Part 2 |Â Respiratory Disorders - III |
 62%
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
- 1(current)
Q. No.
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