Medium MCQ +4 / -1 PYQ · JEE Mains 2021

The INCORRECT statement(s) about heavy water is (are)

(A) used as a moderator in nuclear reactor

(B) obtained as a by-product in fertilizer industry

(C) used for the study of reaction mechanism

(D) has a higher dielectric constant than water

Choose the correct answer from the options given below :

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

Solution

Heavy water (D<sub>2</sub>O) is obtained as a by-product in the fertilizer industry. It is used as a moderator in nuclear reactors and for the study of the reaction mechanisms. Its dielectric constant is lower than that of H<sub>2</sub>O.

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 →