Chemistry Which one of the following is a micro-element ? Oxygen Hydrogen Chlorine Nitrogen Oxygen Hydrogen Chlorine Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The working of a dry cell is based on Electrolysis Spontaneous oxidation-reduction reaction Combination reaction Decomposition reaction Electrolysis Spontaneous oxidation-reduction reaction Combination reaction Decomposition reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to emission of which of the following in to the atmosphere ? Carbon monoxide and nitrogen Carbon dioxide and carbon monoxide Ozone and carbon dioxide Oxides of nitrogen and sulphur Carbon monoxide and nitrogen Carbon dioxide and carbon monoxide Ozone and carbon dioxide Oxides of nitrogen and sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry The increasing abundance of green house gases in atmosphere has led to the following effect except Carbon dioxide ferilization effect Depletion of ozone layer in the stratosphere Oxygen fertilization effect Global warming Carbon dioxide ferilization effect Depletion of ozone layer in the stratosphere Oxygen fertilization effect Global warming ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is most acidic CaO Na2O Al22O3 MgO CaO Na2O Al22O3 MgO ANSWER DOWNLOAD EXAMIANS APP
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