NextMockSearch exams, e.g. SSC CGL, UPPSC, Lekhpal
Railways PYQCBT 1 2016

RRB NTPC · Question 45

What is the eye irritating compound when cutting onions? A. Carbon B. Nitrogen C. Sulphur D. Hydrogen

  1. B

  2. C

  3. D

  4. A

Show answer & explanation

Answer: (B) C

Explanation

Cutting onions releases syn-propanethial-S-oxide, a sulphur compound that irritates the eyes and makes them water.