Chemistry Which metal does not undergo corrosion due to the formation of oxide layer? Copper Iron Aluminium Zinc Copper Iron Aluminium Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is an example of noble gas ? Hydrogen Nitrogen Chlorine Helium Hydrogen Nitrogen Chlorine Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following could be used as fuel in propellant or rockets ? Liquid Hydrogen + Liquid Nitrogen Liquid Hydrogen + Liquid Oxygen Liquid Nitrogen + Liquid Oxygen Liquid Oxygen + Liquid Argon Liquid Hydrogen + Liquid Nitrogen Liquid Hydrogen + Liquid Oxygen Liquid Nitrogen + Liquid Oxygen Liquid Oxygen + Liquid Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which substance is used to retard the setting action of cement? Na2O + K2O Al2O3 CaSO4, 2H2O CaO Na2O + K2O Al2O3 CaSO4, 2H2O CaO ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of replenishable energy source is– Biomass Coal Lignite Petroleum Biomass Coal Lignite Petroleum ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of carbon in carbon dioxide (CO2) 0.273 0.158 0.201 0.323 0.273 0.158 0.201 0.323 ANSWER DOWNLOAD EXAMIANS APP
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