Chemistry Electric bulbs are filled with : Oxygen Carbon dioxide Nitrogen Argon Oxygen Carbon dioxide Nitrogen Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry When Hydrogen starts burning in air, it produces ? Ammonia Methane Carbonic Acid Water Ammonia Methane Carbonic Acid Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Lime Sodium carbonate Potassium Permangante Alum Lime Sodium carbonate Potassium Permangante Alum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is an antidiabatic drug? Insulin Aspirin Penicillin Chloroquine Insulin Aspirin Penicillin Chloroquine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Combustion of a candle is a/an Photochemical reaction Exothermic reaction Physical change Endothermic reaction Photochemical reaction Exothermic reaction Physical change Endothermic reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stainless steel is usually made by alloying the steel with Manganese and copper Copper and chromium Copper and nickel Chromium and nickel Manganese and copper Copper and chromium Copper and nickel Chromium and nickel ANSWER DOWNLOAD EXAMIANS APP
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