Chemistry The natural source of hydro-carbon is Biomass Coal Crude oil Carbohydrates Biomass Coal Crude oil Carbohydrates ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of fertilizers ? Aluminium Fluorine Lead Potassium Aluminium Fluorine Lead Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ‘Green House effect’ is produced due to the presence of excess amount of Nitrogen dioxide Sulphur dioxide Carbon monoxide Methane Nitrogen dioxide Sulphur dioxide Carbon monoxide Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is least likely to be found in commercial fertilisers? Potassium Silicon Nitrogen Phosphorous Potassium Silicon Nitrogen Phosphorous ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal that is usually extracted from sea water is Ca Mg Na K Ca Mg Na K ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of O3 and N2 Oxides of N and S O2 and N2 O2 and O3 O3 and N2 Oxides of N and S O2 and N2 O2 and O3 ANSWER DOWNLOAD EXAMIANS APP
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