Chemistry Surface water is a better source of drinking water because it is poor in Arsenic Dust Algae Bacteria Arsenic Dust Algae Bacteria ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a man-made source of air pollution ? All of these Bacterial action in soil and swamp areas Automobile exhaust Forest fire All of these Bacterial action in soil and swamp areas Automobile exhaust Forest fire ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is most toxic ? Carbon dioxide Chlorine Sulphur dioxide Carbon monoxide Carbon dioxide Chlorine Sulphur dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of carbon in carbon dioxide (CO2) 0.323 0.273 0.201 0.158 0.323 0.273 0.201 0.158 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Latin word formica means ant. The name formic acid is derived from this Latin word because this acid was first obtained by the distillation of ants this corrosive acid is secreted by ants to drive away their enemies ants are attracted by the odour of this acid this acid, in ancient times, was used to eliminate ant-hills this acid was first obtained by the distillation of ants this corrosive acid is secreted by ants to drive away their enemies ants are attracted by the odour of this acid this acid, in ancient times, was used to eliminate ant-hills ANSWER DOWNLOAD EXAMIANS APP
Chemistry The common name for the compound having formal NaOH is Soda ash Sodium hydroxide Caustic potash Caustic soda Soda ash Sodium hydroxide Caustic potash Caustic soda ANSWER DOWNLOAD EXAMIANS APP
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