Chemistry Coal is formed from Coke Crude oil Deposit of animal waste Compressed and hardened biomass Coke Crude oil Deposit of animal waste Compressed and hardened biomass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ? Neon Sodium Nitrogen Hydrogen Neon Sodium Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highest percentage of carbon is found in which form of coal? Bituminous Peat Lignite Anthracite Bituminous Peat Lignite Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of halogen elements found in the periodic table is 8 13 3 5 8 13 3 5 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a gaseous air pollutant? Oxides of sulphur Hydrocarbon Oxides of nitrogen Smoke Oxides of sulphur Hydrocarbon Oxides of nitrogen Smoke ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following statement is correct ?Ozone is found in the earth's atmosphere mostly between 20 and 50 km 50 and 100 km 10 and 20 km 5 and 10 km 20 and 50 km 50 and 100 km 10 and 20 km 5 and 10 km ANSWER DOWNLOAD EXAMIANS APP
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