Medium MCQ +4 / -1 PYQ · JEE Mains 2023

A. Ammonium salts produce haze in atmosphere.

B. Ozone gets produced when atmospheric oxygen reacts with chlorine radicals.

C. Polychlorinated biphenyls act as cleansing solvents.

D. 'Blue baby' syndrome occurs due to the presence of excess of sulphate ions in water.

Choose the correct answer from the options given below :

  1. A B and C only
  2. B A and D only
  3. C A, B and C only
  4. D A and C only Correct answer

Solution

<p>Ammonium salts produce haze in atmosphere. Ozone is produced when atmospheric oxygen reacts with oxygen atoms and not chlorine atoms. Polychlorinated biphenyls have number of applications including their use as cleansing solvents.</p> <p>‘Blue baby’ syndrome occurs due to the presence of excess of nitrate ions and not sulphate ions in water.</p>

About this question

Subject: Chemistry · Chapter: p-Block Elements · Topic: Group 13: Boron Family

This question is part of PrepWiser's free JEE Main question bank. 300 more solved questions on p-Block Elements are available — start with the harder ones if your accuracy is >70%.

Drill 25 more like these. Every day. Free.

PrepWiser turns these solved questions into a daily practice loop. Chapter-wise drills, full mocks, AI doubt chat. No auto-renew.

Start free →