Multiple choice

A lachrymator is a substance that irritates eyes and produces tears. Among the following ------------------------- is a powerful lachrymator.

  1. Chlorosulfuric acid

  2. Thioacetic acid

  3. Tribromoisocyanuric acid

  4. Trifluoromethanesulfonic acid

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A Correct answer
Explanation

Chlorosulfuric acid is the inorganic compound with the formula HSO3Cl. It is also known as chlorosulfonic acid. It is a distillable, colourless liquid .It is a hygroscopic and a powerful lachrymator.