Chemistry Hydrogen is not found in atmosphere because It is absorbed by plants It is highly inflammable It is the lightest gas It immediately combines with oxygen to form water It is absorbed by plants It is highly inflammable It is the lightest gas It immediately combines with oxygen to form water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of total hardness in drinking water is 500 50 100 200 500 50 100 200 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Extensively used nitrogenous fertilizer is Nitro-lime Ammonium nitrate Ammonium sulphate Urea Nitro-lime Ammonium nitrate Ammonium sulphate Urea ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tear gas used by the police to disperse the mob contains Carbon dioxide Chlorine Hydrogen sulphide Ammonia Carbon dioxide Chlorine Hydrogen sulphide Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water Calcium Magnesium None of these Manganese Calcium Magnesium None of these Manganese ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain' is caused due to air - pollution by Nitrous oxide and sulphur dioxide Methane Carbon monoxide Carbon dioxide Nitrous oxide and sulphur dioxide Methane Carbon monoxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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