Chemistry Sulphur dioxide bleaches colouring matter by : Decomposition Dehydration Reduction Oxidation Decomposition Dehydration Reduction Oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Epsom salt is used In paper industry In making tooth paste In softening water As purgative In paper industry In making tooth paste In softening water As purgative ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Lime Potassium Permangante Alum Sodium carbonate Lime Potassium Permangante Alum Sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Quartz is a crystalline form of Glass Alumina Limestone Silica Glass Alumina Limestone Silica ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which turns into liquid at the lowest temperature among the following is Helium Hydrogen Nitrogen Oxygen Helium Hydrogen Nitrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives Hydrogen at cathode and oxygen at anode Copper at cathode and oxygen at anode Copper at cathode and anodes dissolve to give copper Copper at anode and oxygen at cathode. Hydrogen at cathode and oxygen at anode Copper at cathode and oxygen at anode Copper at cathode and anodes dissolve to give copper Copper at anode and oxygen at cathode. ANSWER DOWNLOAD EXAMIANS APP
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