List of top Chemistry Questions on heavy water

Match List-I with List-II :

	List-I (Species)		List-II (Maximum allowed concentration in ppm in drinking water)
A	F-	I	< 50 ppm
B	\(SO^{2-}_4\)	II	< 5 ppm
C	\(NO^-_3\)	III	< 2 ppm
D	Zn	IV	< 500 ppm

Choose the correct answer from the options given below :

Given below are two statements:
Statement I: Permutit process is more efficient compared to the synthetic resin method for the softening of water.
Statement II: Synthetic resin method results in the formation of soluble sodium salts.
In the light of the above statements, choose the most appropriate answer from the options given below:

Boiling of hard water is helpful in removing the temporary hardness by converting calcium hydrogen carbonate and magnesium hydrogen carbonate to

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

$ NaCl $ is less soluble in heavy water than in ordinary water. Dielectric constant of ordinary water is more than that of heavy water.

Some statements about water are given below: (a) Heavy water is used as a moderator in nuclear reactors (b) Heavy water is more associated than ordinary water (c) Heavy water is more effective solvent than ordinary water. Which of the above statements are correct ?

Water is used as a moderator in nuclear reactor. Moderator is a light substance that absorb neutrons.

The boiling point of heavy water is

Heavy water is obtained:

Melting point of $D_2O$ is higher than $H_2O$ because