Chemistry Which metal does not undergo corrosion due to the formation of oxide layer? Zinc Aluminium Iron Copper Zinc Aluminium Iron Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical bahaviour of an atom depends upon The number of electrons orbiting around the nucleus The number of neutrons in the nucleus The number of protons in its nucleus The number of nucleons in the nucleus The number of electrons orbiting around the nucleus The number of neutrons in the nucleus The number of protons in its nucleus The number of nucleons in the nucleus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Dry powder fire extinguishers contain Sand and sodium bicarbonate Sand Sand and sodium carbonate Sand and potassium carbonate Sand and sodium bicarbonate Sand Sand and sodium carbonate Sand and potassium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Plaster of Paris' is made by partial dehydration of Gypsum salt Epsom salt Blue vitriol Green vitriol Gypsum salt Epsom salt Blue vitriol Green vitriol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of neutrons present in an element having mass number 226 and atomic number 88 is : 314 50 138 88 314 50 138 88 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion in Ozone layer is caused by ________ . Methane Carbon dioxide Nitrous oxide Chlorofluorocarbons Methane Carbon dioxide Nitrous oxide Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
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