Chemistry This group of alumino-silicate minerals is widely used in making electrical insulators Bauxite Manganese Chromite Mica Bauxite Manganese Chromite Mica ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of a nucleus is 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 the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as a lubricant in heavy machines? Graphite Bauxite Sulphur Phosphorus Graphite Bauxite Sulphur Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide bleaches colouring matter by : Oxidation Dehydration Reduction Decomposition Oxidation Dehydration Reduction Decomposition ANSWER DOWNLOAD EXAMIANS APP
Chemistry The reaction intermediate formed during the preparation of diethylether from ethanol by treatment with H2SO4 is Carbene Carbocation Free radical Carbanion Carbene Carbocation Free radical Carbanion ANSWER DOWNLOAD EXAMIANS APP
Chemistry If water smells bad, then that odour can be removed by adding Activated carbon Alum Deactivated nitrogen Bleach Activated carbon Alum Deactivated nitrogen Bleach ANSWER DOWNLOAD EXAMIANS APP
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