Chemistry Surface water is a better source of drinking water because it is poor in Algae Dust Arsenic Bacteria Algae Dust Arsenic Bacteria ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tear gas is : Chloroprene Nitrous oxide Carbonyl chloride Bleaching powder Chloroprene Nitrous oxide Carbonyl chloride Bleaching powder ANSWER DOWNLOAD EXAMIANS APP
Chemistry Global warming is mainly due to accumulation of Carbon dioxide Oxides of sulphur Oxides of nitrogen Carbon monoxide Carbon dioxide Oxides of sulphur Oxides of nitrogen Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is Non-combustible More abundant than hydrogen Lighter than hydrogen More stable Non-combustible More abundant than hydrogen Lighter than hydrogen More stable ANSWER DOWNLOAD EXAMIANS APP
Chemistry Concentration of a material which is lethal to 50% animal is called LC50 NOAEL LD50 ADI LC50 NOAEL LD50 ADI ANSWER DOWNLOAD EXAMIANS APP
Chemistry If there is one million Mg2+ ions in MgCl2, how many chloride ions are there? One million Ten million Half a million Two million One million Ten million Half a million Two million ANSWER DOWNLOAD EXAMIANS APP
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