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 acid, in ancient times, was used to eliminate ant-hills this corrosive acid is secreted by ants to drive away their enemies ants are attracted by the odour of this acid this acid was first obtained by the distillation of ants this acid, in ancient times, was used to eliminate ant-hills this corrosive acid is secreted by ants to drive away their enemies ants are attracted by the odour of this acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major harmful gas emitted by automobile vehicles which causes air pollution is Ozone gas Carbon Monoxide Methane Carbon dioxide Ozone gas Carbon Monoxide Methane Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion in Ozone layer is caused by ________ . Methane Chlorofluorocarbons Carbon dioxide Nitrous oxide Methane Chlorofluorocarbons Carbon dioxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry A balloon filled with helium rises in air because The balloon is weightless Helium pushes down on the air below the balloon Helium is less dense than air Air exerts an upward force on the balloon The balloon is weightless Helium pushes down on the air below the balloon Helium is less dense than air Air exerts an upward force on the balloon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone consists of Oxygen and Nitrogen Oxygen and Carbon Hydrogen and Carbon Oxygen only Oxygen and Nitrogen Oxygen and Carbon Hydrogen and Carbon Oxygen only ANSWER DOWNLOAD EXAMIANS APP
Chemistry DDT and BHC may act as Carcinogens None of these Allergens Asthematic agents Carcinogens None of these Allergens Asthematic agents ANSWER DOWNLOAD EXAMIANS APP
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