Chemistry The main active constituent of tea and coffee is aspirin caffeine nicotine chlorophyll aspirin caffeine nicotine chlorophyll ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a spoon is to be electroplated with nickel the spoon is Dipped in a nickel sulphate solution Coated with nickel sulphate and dried Made cathode and a pure nickel red, the anode Made anode and a pure nickel rod, the cathode Dipped in a nickel sulphate solution Coated with nickel sulphate and dried Made cathode and a pure nickel red, the anode Made anode and a pure nickel rod, the cathode ANSWER DOWNLOAD EXAMIANS APP
Chemistry A mixture of water and alcohol can be separated by Decantation Distillation Filtration Evaporation Decantation Distillation Filtration Evaporation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element which is used for vulcanizing rubber Sulphur Phosphorus Bromine Silicon Sulphur Phosphorus Bromine Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Carbon monoxide Carbon di-oxide Methane Ethane Carbon monoxide Carbon di-oxide Methane Ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atmospheric gas that is mainly responsible for Green House effect : Oxygen Ozone Nitrogen Carbondioxide Oxygen Ozone Nitrogen Carbondioxide ANSWER DOWNLOAD EXAMIANS APP
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