Chemistry German silver used for making utensils is an alloy of Copper, silver, nickel Copper, zinc, aluminium Copper, nickel, aluminium Copper, zinc, nickel Copper, silver, nickel Copper, zinc, aluminium Copper, nickel, aluminium Copper, zinc, nickel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a greenhouse gas ? Sulphur dioxide Helium Nitrogen Carbon dioxide Sulphur dioxide Helium Nitrogen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical bahaviour of an atom depends upon The number of neutrons in the nucleus The number of electrons orbiting around the nucleus The number of nucleons in the nucleus The number of protons in its nucleus The number of neutrons in the nucleus The number of electrons orbiting around the nucleus The number of nucleons in the nucleus The number of protons in its nucleus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Carbon dioxide Nitrous oxide Chlorofluorocarbons Sulphur dioxide Carbon dioxide Nitrous oxide Chlorofluorocarbons Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals is not a pollutant ? Arsenic Aluminium Lead Mercury Arsenic Aluminium Lead Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vinegar made by fermentation from cane sugar contains Palmitic acid Citric acid Acetic acid Lactic acid Palmitic acid Citric acid Acetic acid Lactic acid ANSWER DOWNLOAD EXAMIANS APP
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