Most important Chemistry oneliner for RRB NTPC and SSC
This post is a collection of Chemistry questions which are asked in RRB NTPC, SSC CGL, SSC CHSL, UPSC and many other Government examinations.
- The gas which is present in both the natural gas and the bio-gas is : Methane
- The Ozone layer is found in the earth’s atmosphere mostly between: 20 to 50 km
- Acid rain is caused due to the emission of the gases into the atmosphere are : Oxides of nitrogen and sulphur
- The process of improving the quality of rubber by heating it with sulphur is called: Vulcanization
- Vitamin B1: Thiamin
- Vitamin B2: Riboflavin
- Vitamin B6 : Pyridoxin
- Vitamin B12 :Cyanocobalamine
- Ozone depletion in the stratosphere is mainly caused by : CFC (Chlorofluorocarbons)
- Group of gases contribute to the “Green House Effect” : Carbon dioxide and Methane
- Anti-freeze for the automobile engines : Ethylene glycol
- The water pollution in river is measured by the dissolved amount of : Oxygen
- Fruits stored in a cold chamber exhibit longer storage life because : rate of respiration is decreased
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Nutrient Deficiency disease Iodine Goitre Iron Microcytic anaemia Niacin Pellagia Vitamin B12 Pernicious anaemia - The gas used as a chemical weapon in the first world war is: Mustard gas
- The increasing abundance of green house gases in atmosphere has led to : i)Global warming, ii) Depletion of ozone layer in the atmosphere iii) Carbon dioxide fertilization effect
- The disease caused through the wound or injury or surfaces of unsterilized surgical instruments: Tetanus
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Vitamine Chemical compound Vitamin A Retinol Vitamin C Ascorbic acid Vitamin E Trocopherol - ‘Freon‘ used as refrigerants is chemically: Chlorofluoro hydrocarbon
- Causes for global warming and climate change : CFC emission, Carbondioxide emission, Methane emission
- The role of ultraviolet (UV) radiation in water purification system is: It inactivates/kills the harmful microorganisms in water
- The increaing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere, because it absorbs : The infrared part of the solar radiation
- The elements which were primarily responsible for the origin of life on the Earth : Carbon, Hydrogen and Nitrogen
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Green House gas Major source Carbondioxide Burning of fossil Methane Entering fermentation in cattle Chlorofluocarbons Air conditioner and refrigeration units Nitrous Oxide Nylon production
