Chemistry Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives 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. Copper at cathode and anodes dissolve to give copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number of an atom gives the number of which of the following ? Protons Neutrons and protons Electrons Neutrons Protons Neutrons and protons Electrons Neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore which contains 72% of iron is : Siderite Magnetite Haematite Limonite Siderite Magnetite Haematite Limonite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Wood spirit is Butyl alcohol Ethyl alcohol Propyl alcohol Methyl alcohol Butyl alcohol Ethyl alcohol Propyl alcohol Methyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen in water is commonly found in the form of Nitrite Nitrate Nitrous oxide Nitric oxide Nitrite Nitrate Nitrous oxide Nitric oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a method of preparing oxygen? Decomposition of manganese dioxide Electrolysis of water Fractional distillation of liquid air Decomposition of potassium permanganate Decomposition of manganese dioxide Electrolysis of water Fractional distillation of liquid air Decomposition of potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
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