Chemistry Which amidst the following is not a gem stone ? Opal Cat's-eye Topaz Pearl Opal Cat's-eye Topaz Pearl ANSWER DOWNLOAD EXAMIANS APP
Chemistry Catalyst is a substance which Has no action on the rate of the reaction None of these Increases the rate of the reaction Decreases the rate of reaction Has no action on the rate of the reaction None of these Increases the rate of the reaction Decreases the rate of reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Sulphur dioxide Carbon dioxide Chlorofluorocarbon Nitrous oxide Sulphur dioxide Carbon dioxide Chlorofluorocarbon Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Saline soil contains High concentration of salt Lot of moisture Hard rocks None of these High concentration of salt Lot of moisture Hard rocks None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry In upper layer of atmosphere ozone is formed by The combination of oxygen molecules The action of nitrogen on oxygen in atmosphere Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The combination of oxygen molecules The action of nitrogen on oxygen in atmosphere Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of ‘Common salt’ is Ammonium chloride Sodium chloride Sodium nitrate Calcium chloride Ammonium chloride Sodium chloride Sodium nitrate Calcium chloride ANSWER DOWNLOAD EXAMIANS APP
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