NEET 2023 · Class 12

Human Health and Disease

Diacetyl morphine is also called as :

  1. (A)Amphetamine
  2. (B)Barbiturate
  3. (C)Crack
  4. (D)Smack

The NCERT line that answers it

Verbatim line

Heroin (Figure 7.7), commonly called *smack* is chemically diacetylmorphine which is a white, odourless, bitter crystalline compound.

Chapter
Human Health and Disease
Section
7.5 DRUGS AND ALCOHOL ABUSE
Page
15
Words matched
17 of 17

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 'Heroin...commonly called smack is chemically diacetylmorphine', which directly and conclusively answers the MCQ by providing both the chemical name (diacetyl morphine) and its common name (smack).

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.

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Question text is reproduced from the published NEET 2023 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.