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NDA 2019 GAT · General Knowledge · Carbon and Organic Chemistry · easy

A strong-smelling compound is added to LPG cylinders so that a leakage can be detected. This compound is

Single correct option

A strong-smelling compound is added to LPG cylinders so that a leakage can be detected. This compound is
  1. A. methyl isocyanate
  2. B. ethyl mercaptan
  3. C. chloroform
  4. D. formaldehyde
Show answer and solution

Answer: (B) ethyl mercaptan

LPG is odourless, so a small amount of ethyl mercaptan, which has a foul smell, is added as a safety measure. Methyl isocyanate was the gas involved in the Bhopal tragedy, and chloroform and formaldehyde are not used for this purpose.
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Original question written in the NDA 2019 GAT pattern and checked twice for the correct answer. Not an official question paper. How we write and check questions · Corrections policy · Report a mistake