CBSE Class 11-science Answered
What are the most likely questions that come for the exams from the chapter HYDROGEN and ENVIRONMENTAL CHEMISTRY ?
Asked by pksunilnair | 10 Mar, 2017, 06:22: PM
Expert Answer
All the topics mentioned in the CBSE syllabus are important in exam point of view.
The most important topics from the chapter Hydrogen are:
- Position of hydrogn in the periodic table : Justify
- Isotopes of hydrogen
- Dihydrogen - Preparation, properties and uses
- Hydrides, its three types
- Difference between structures of ice and water
- Chemical properties of water
- Hard and soft water - Definition and methods of removal
- H2O2 - Preparation, structure and properties
- Use of dihydrogen as an efficient fuel
The most important topics from the chapter Environmental Chemistry are:
Air Pollution
- Gaseous pollutants (oxides of carbon and oxides of nitrogen)
- Greenhouse effect
- Global warning
- Acid rain
- Smog
- Photochemical smog: Definition, formation, adverse effects and effective control
- Ozone Formation, breakdown, ozone hole, depletion of ozone layer
Water Pollution
- Causes of water pollution
- BOD
- Eutrophication
- Portable water and international standards of drinking water
Causes of soil pollution
Wastes and its management - Collection and disposal of wastes
Green chemistry
Answered by Prachi Sawant | 12 Mar, 2017, 06:19: PM
CBSE 11-science - Chemistry
Asked by mayuresh.sudrik | 25 Sep, 2023, 12:21: AM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by acshanadhana15 | 16 Sep, 2020, 11:17: AM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by ombhattarai693 | 27 Feb, 2020, 08:44: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by vatsal012345 | 09 Dec, 2019, 11:09: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by Sana3sayeed6394 | 13 Mar, 2019, 01:16: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by govtsecschoolnayaganv051 | 27 Sep, 2018, 05:10: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by govtsecschoolnayaganv051 | 27 Sep, 2018, 05:08: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by mbinukurian1971 | 17 Jun, 2018, 03:16: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by imtiyazmulla68 | 23 Mar, 2018, 08:55: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT
