Chemistry Which one of the following mineral does not contain oxygen ? Calcite Bauxite Cryolite Haematite Calcite Bauxite Cryolite Haematite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following elements is found in maximum percentage in the human body ? Nitrozen Carbon Oxyzen Hydrogen Nitrozen Carbon Oxyzen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in embalming biological materials is Ethylene glycol Formaldehyde in methanol Formaldehyde in water Gaseous formaldehyde Ethylene glycol Formaldehyde in methanol Formaldehyde in water Gaseous formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxide of sulphur present in the atmosphere are washed down by rains to cause : Lowering of pH of soil Industrial smog formation Depletion of fossil fuel reserves Eutrophication in lakes Lowering of pH of soil Industrial smog formation Depletion of fossil fuel reserves Eutrophication in lakes ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main source of carbon monoxide is Transportation Industrial process Fuel combustion Solid waste disposal Transportation Industrial process Fuel combustion Solid waste disposal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of6.023 × 1020 atoms present in one mole of a gas at STP is 6.023 × 1020 '6.023 × 10–20 6.023 × 1023 '6.023 × 10–23 6.023 × 1020 '6.023 × 10–20 6.023 × 1023 '6.023 × 10–23 ANSWER DOWNLOAD EXAMIANS APP
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