Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Carbon dioxide Carbonates from soil Water Oxides of mineral elements Carbon dioxide Carbonates from soil Water Oxides of mineral elements ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nucleus of a hydrogen atom consists of 1 proton only 1 electron only 1 neutron only 1 proton + 2 neutron 1 proton only 1 electron only 1 neutron only 1 proton + 2 neutron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The liquid waste from kitchens and baths, of residences is known as : Domestic sewage Sullage Storm water Refuse Domestic sewage Sullage Storm water Refuse ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide level in the atmosphere can be reduced by using Low - sulphur fuels Catalytic converters in industry More efficient car engines Static electricity to attract it in factory chimneys Low - sulphur fuels Catalytic converters in industry More efficient car engines Static electricity to attract it in factory chimneys ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gobar gas contains mainly : Acetylene Ethylene Propylene Methane Acetylene Ethylene Propylene Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of these acids is not organic in origin? Lactic acid Citric acid Oxalic acid Sulphuric acid Lactic acid Citric acid Oxalic acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
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