Chemistry The manufacturing of iron from iron ore involves the process of Electrolysis Reduction Oxidation Fractional distillation Electrolysis Reduction Oxidation Fractional distillation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Impure camphor is purified by Fractional distillation Sublimation Steam distillation Fractional crystallisation Fractional distillation Sublimation Steam distillation Fractional crystallisation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Oxidation Electrolysis Zone refining Roasting Oxidation Electrolysis Zone refining Roasting 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 What is a common name for the substance which irritates lachrymal glands ? Anaesthetic Gas Tear Gas Noble Gas Laughing Gas Anaesthetic Gas Tear Gas Noble Gas Laughing Gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rutherford’s scattering experiment proved the presence of Atoms in all matter Electrons in atoms Neutrons in atoms Nucleus in atoms Atoms in all matter Electrons in atoms Neutrons in atoms Nucleus in atoms ANSWER DOWNLOAD EXAMIANS APP
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