Chemistry Which among the following coal contains 90 per cent of carbon? Bitumen Peat Lignite Anthracite Bitumen Peat Lignite Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of Iron is : Steel Cast iron Pig iron Wrought iron Steel Cast iron Pig iron Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is secondary air pollutant ? SO2 Dust particles NO2 Photochemical smog SO2 Dust particles NO2 Photochemical smog ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one out of the following helps in burning ? Carbon monoxide Nitrogen Oxygen Carbon dioxide Carbon monoxide Nitrogen Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most commonly used chemicals in the artificial rainmaking or cloud seeding are All of these Silver Iodide (Ag I) Dry Ice (Frozen CO2) Sodium Chloride (NaCl) All of these Silver Iodide (Ag I) Dry Ice (Frozen CO2) Sodium Chloride (NaCl) ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element by number in the living system is : Hydrogen Nitrogen Oxygen Carbon Hydrogen Nitrogen Oxygen Carbon ANSWER DOWNLOAD EXAMIANS APP
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