Importance of Core Revision Points: Core Revision Points are important because if you remember them strongly, many more points related to them will come out of your memory and help you to answer question and problems. Read them many times and make sure you remember them very strongly.
Revision Points in the Sections in the Chapter - Jauhar
1. Unique position of hydrogen in the periodic table
Hydrogen is the only element which does not have neutrons in the nucleus.
Hydrogen resembles alkali metals as well as halogens in its properites.
2. Occurrence of hydrogen
3. Isotopes of hydrogen
4. Dihydrogen
5. Hydrides
6. Water
7. Heavy Water
Heavy water is D2O. It is used in nuclear reactors as moderator.
8. Hard and Soft Water
Calgon process is the most modern method of the softening of water.
9 Hydrogen Peroxide
Strength of hydrogen peroxide is usually expressed as volume. A 20 volume of H2O2 means that l litre of this solution will give 20 litres of oxygen at N.T.P.
10 Liquid Hydrogen as a Fuel
Liquid hydrogen has been used as an important rocket fuel.
11 Hydrogen Economy
Sections in the Chapter - Jauhar
1. Unique position of hydrogen in the periodic table
2. Occurrence of hydrogen
3. Isotopes of hydrogen
4. Dihydrogen
5. Hydrides
6. Water
7. Heavy Water
8. Hard and Soft Water
9 Hydrogen Peroxide
10 Liquid Hydrogen as a Fuel
11 Hydrogen Economy
Updated on 2 January 2020
21 May 2015
Revision Points in the Sections in the Chapter - Jauhar
1. Unique position of hydrogen in the periodic table
Hydrogen is the only element which does not have neutrons in the nucleus.
Hydrogen resembles alkali metals as well as halogens in its properites.
2. Occurrence of hydrogen
3. Isotopes of hydrogen
4. Dihydrogen
5. Hydrides
6. Water
7. Heavy Water
Heavy water is D2O. It is used in nuclear reactors as moderator.
8. Hard and Soft Water
Calgon process is the most modern method of the softening of water.
9 Hydrogen Peroxide
Strength of hydrogen peroxide is usually expressed as volume. A 20 volume of H2O2 means that l litre of this solution will give 20 litres of oxygen at N.T.P.
10 Liquid Hydrogen as a Fuel
Liquid hydrogen has been used as an important rocket fuel.
11 Hydrogen Economy
Sections in the Chapter - Jauhar
1. Unique position of hydrogen in the periodic table
2. Occurrence of hydrogen
3. Isotopes of hydrogen
4. Dihydrogen
5. Hydrides
6. Water
7. Heavy Water
8. Hard and Soft Water
9 Hydrogen Peroxide
10 Liquid Hydrogen as a Fuel
11 Hydrogen Economy
Updated on 2 January 2020
21 May 2015
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