Chemistry In upper layer of atmosphere ozone is formed by The combination of oxygen molecules The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere Subjecting oxygen to high pressure The combination of oxygen molecules The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere Subjecting oxygen to high pressure ANSWER DOWNLOAD EXAMIANS APP
Chemistry Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives Copper at cathode and anodes dissolve to give copper Copper at cathode and oxygen at anode Hydrogen at cathode and oxygen at anode Copper at anode and oxygen at cathode. Copper at cathode and anodes dissolve to give copper Copper at cathode and oxygen at anode Hydrogen at cathode and oxygen at anode Copper at anode and oxygen at cathode. ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of an atom is equal to the number of neutrons the number of protons and electrons the number of nucleons the number of protons the number of neutrons the number of protons and electrons the number of nucleons the number of protons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Milk tastes sour when kept in the open for sometime due to the formation of Acetic acid Citric acid Lactic acid Carbonic acid Acetic acid Citric acid Lactic acid Carbonic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of a nucleus is a fraction always less than its atomic number the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight a fraction always less than its atomic number the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements in the modern Periodic table are arranged according to their Atomic Weight Neutron number Atomic number Mass number Atomic Weight Neutron number Atomic number Mass number ANSWER DOWNLOAD EXAMIANS APP
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