Chemistry Which of the following is a man-made source of air pollution ? All of these Automobile exhaust Bacterial action in soil and swamp areas Forest fire All of these Automobile exhaust Bacterial action in soil and swamp areas Forest fire 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
Chemistry Substance used as an anti freeze in radiators of automobiles is : Ethyl alcohol Methyl alcohol Ethyl alcohol and H2O Methyl alcohol and H2O Ethyl alcohol Methyl alcohol Ethyl alcohol and H2O Methyl alcohol and H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of a nucleus is the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight always less than its atomic number a fraction the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight always less than its atomic number a fraction ANSWER DOWNLOAD EXAMIANS APP
Chemistry The heaviest naturally occurring element is: Thorium Uranium Polonium Mercury Thorium Uranium Polonium Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry Except mercury which is the other metal that is liquid at standard conditions for temperature and pressure Lead Barium Magnesium Bromine Lead Barium Magnesium Bromine ANSWER DOWNLOAD EXAMIANS APP
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