NEET UG 2026 · Chemistry · Question 55
NEET 2026 Chemistry, question 55
Question 55 of the NEET 2026 paper (re-exam) is a Chemistry question from Organic Chemistry - Some Basic Principles and Techniques. Its idea, Lassaigne's Test for Sulphur, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q55 · Chemistry
The amino acid that gives a red-blood colour on treating its sodium fusion extract with sodium nitroprusside is
- 1leucine
- 2threonine
- 3methionineOfficial answer
- 4serine
Official answer: option 3 · NTA final answer key
Same idea
The only question on Lassaigne's Test for Sulphur
No other NEET paper from 2017–2026 tested this exact idea.
Lassaigne's Test for Sulphur: every question and how it was framed
The chapter
Organic Chemistry - Some Basic Principles and Techniques in ten years of NEET
22 questions from 2017–2026, asked in 10 of 10 papers, about 2.1 a paper. Purification, Analysis and Isomerism of Organic Compounds alone had 11.