Question

Some statements about heavy water are given below.
(i) Heavy water is used as moderator in nuclear reactors
(ii) Heavy water is more associated then ordinary water
(iii) Heavy water is more effective solvent than ordinary water
Which of the above statements are correct?

• A. (i) and (ii)
• B. (i), (ii) and (iii)
• C. (ii) and (iii)
• D. (i) and (iii)

Answer 1

The correct option is A (i) and (ii)

In nuclear reactors, heavy water is used for a moderator. It has a higher boiling point compared to ordinary water. Thus, it is more associated as compared to ordinary water. The dielectric constant is however higher for $H_{2}O$, thus, $H_{2}O$ is a more effective solvent as compare to heave water $\left(D_{2}O\right)$.