Chemistry Which one of the following elements is least likely to be found in commercial fertilisers? Potassium Silicon Phosphorous Nitrogen Potassium Silicon Phosphorous Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following mineral does not contain oxygen ? Cryolite Bauxite Haematite Calcite Cryolite Bauxite Haematite Calcite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Carbon di-oxide Carbon monoxide Methane Ethane Carbon di-oxide Carbon monoxide Methane Ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of 'Hypo' commonly used in photography is Sodium thiosulphate Sodium nitrate Silver nitrate Silver iodide Sodium thiosulphate Sodium nitrate Silver nitrate Silver iodide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main active constituent of tea and coffee is chlorophyll caffeine aspirin nicotine chlorophyll caffeine aspirin nicotine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following will replace hydrogen from acids to form salts ? Ag Na P S Ag Na P S ANSWER DOWNLOAD EXAMIANS APP
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