Chemistry The main active constituent of tea and coffee is caffeine nicotine aspirin chlorophyll caffeine nicotine aspirin chlorophyll ANSWER DOWNLOAD EXAMIANS APP
Chemistry Dry ice is the solid form of : Water Air Nitrogen Carbon di–oxide Water Air Nitrogen Carbon di–oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Water Carbonates from soil Oxides of mineral elements Carbon dioxide Water Carbonates from soil Oxides of mineral elements Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry When quick lime is added to water Heat is liberated Heat is absorbed Temperature decreases No heat change takes place Heat is liberated Heat is absorbed Temperature decreases No heat change takes place ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following chemicals helps in fruit ripening? Ethephon Isoproturan Atrazine Malathion Ethephon Isoproturan Atrazine Malathion ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercial nitric acid is coloured because it contains dissolved : Oxygen Nitrogen dioxide Nitrous oxide Coloured impurities Oxygen Nitrogen dioxide Nitrous oxide Coloured impurities ANSWER DOWNLOAD EXAMIANS APP
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