Preparation and Properties of Heavy Water, Comparison Properties of Heavy Water and Water
CHXI09:HYDROGEN

315697 The number of protons, electrons and neutrons in a molecule of heavy water are respectively:

1 \(\mathrm{8,10,11}\)
2 \(\mathrm{10,10,10}\)
3 \(\mathrm{10,11,10}\)
4 \(\mathrm{11,10,10}\)
CHXI09:HYDROGEN

315698 Which of the following statements are correct regarding \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) and \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\) ?
I. \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) reacts with \(\mathrm{\mathrm{Al}_{4} \mathrm{C}_{3}}\) at a faster rate than does with \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\).
II. The freezing point of \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) is higher than that of \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\)
III. \(\mathrm{\mathrm{NaCl}}\) is more soluble in \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) than in \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\).
IV. Ionic product of \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) is smaller than that of \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\).
Select the correct answer using the codes given below.

1 Both I and II
2 Both I and III
3 Both II and III
4 Both II and IV
CHXI09:HYDROGEN

315699 Some statements about heavy water are given below:
(i) Heavy water is used as a 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?

1 (i) and (ii)
2 (i), (ii) and (iii)
3 (ii) and (iii)
4 (i) and (iii)
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CHXI09:HYDROGEN

315697 The number of protons, electrons and neutrons in a molecule of heavy water are respectively:

1 \(\mathrm{8,10,11}\)
2 \(\mathrm{10,10,10}\)
3 \(\mathrm{10,11,10}\)
4 \(\mathrm{11,10,10}\)
CHXI09:HYDROGEN

315698 Which of the following statements are correct regarding \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) and \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\) ?
I. \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) reacts with \(\mathrm{\mathrm{Al}_{4} \mathrm{C}_{3}}\) at a faster rate than does with \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\).
II. The freezing point of \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) is higher than that of \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\)
III. \(\mathrm{\mathrm{NaCl}}\) is more soluble in \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) than in \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\).
IV. Ionic product of \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) is smaller than that of \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\).
Select the correct answer using the codes given below.

1 Both I and II
2 Both I and III
3 Both II and III
4 Both II and IV
CHXI09:HYDROGEN

315699 Some statements about heavy water are given below:
(i) Heavy water is used as a 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?

1 (i) and (ii)
2 (i), (ii) and (iii)
3 (ii) and (iii)
4 (i) and (iii)
CHXI09:HYDROGEN

315697 The number of protons, electrons and neutrons in a molecule of heavy water are respectively:

1 \(\mathrm{8,10,11}\)
2 \(\mathrm{10,10,10}\)
3 \(\mathrm{10,11,10}\)
4 \(\mathrm{11,10,10}\)
CHXI09:HYDROGEN

315698 Which of the following statements are correct regarding \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) and \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\) ?
I. \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) reacts with \(\mathrm{\mathrm{Al}_{4} \mathrm{C}_{3}}\) at a faster rate than does with \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\).
II. The freezing point of \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) is higher than that of \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\)
III. \(\mathrm{\mathrm{NaCl}}\) is more soluble in \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) than in \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\).
IV. Ionic product of \(\mathrm{\mathrm{D}_{2} \mathrm{O}}\) is smaller than that of \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\).
Select the correct answer using the codes given below.

1 Both I and II
2 Both I and III
3 Both II and III
4 Both II and IV
CHXI09:HYDROGEN

315699 Some statements about heavy water are given below:
(i) Heavy water is used as a 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?

1 (i) and (ii)
2 (i), (ii) and (iii)
3 (ii) and (iii)
4 (i) and (iii)