NEET 1997 · Class 12

Human Health and Disease

Diphtheria is caused by

  1. (A)nematodes
  2. (B)bacteria
  3. (C)virus
  4. (D)none of these.

The NCERT line that answers it

Verbatim line

Dysentery, plague, diphtheria, etc., are some of the other bacterial diseases in man.

Chapter
Human Health and Disease
Section
7.1 COMMON DISEASES IN HUMANS
Page
4
Words matched
13 of 13

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 'diphtheria' is among 'bacterial diseases in man', directly identifying the causative agent as bacteria.

We did this for 1,565 questions.

Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.

Question text is reproduced from the published NEET 1997 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.