NEET 2016 · Class 11

Breathing and Exchange of Gases

Name the chronic respiratory disorder caused mainly by cigarette smoking.

  1. (A)Respiratory acidosis
  2. (B)Respiratory alkalosis
  3. (C)Emphysema
  4. (D)Asthma

The NCERT line that answers it

Verbatim line

**Emphysema** is a chronic disorder in which alveolar walls are damaged due to which respiratory surface is decreased.

Chapter
Breathing and Exchange of Gases
Section
14.6 DISORDERS OF RESPIRATORY SYSTEM
Page
9
Words matched
28 of 28

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'Emphysema is a chronic disorder' and identifies 'cigarette smoking' as 'one of the major causes', which directly matches the MCQ's requirement for a chronic respiratory disorder caused mainly by cigarette smoking.

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Question text is reproduced from the published NEET 2016 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.