Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuCO3 Cu(OH)2 CuO Cu(NO3)2 CuSO4 CuCO3 Cu(OH)2 CuO Cu(NO3)2 CuSO4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal is extracted from sea water? Beryllium Potassium Magnesium Aluminium Beryllium Potassium Magnesium Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stainless steel is an alloy of Chromium and carbon Carbon and iron Chromium, carbon and iron Chromium and iron Chromium and carbon Carbon and iron Chromium, carbon and iron Chromium and iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry 0.01 mole of NaOH is added to 10 liters of water. The pH of water changes by 3 7 4 6 3 7 4 6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element which is used for vulcanizing rubber Sulphur Silicon Bromine Phosphorus Sulphur Silicon Bromine Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Candle is a mixture of Bees wax and stearic acid Paraffin was and stearic acid Higher fatty acids and stearic acid Bees wax and paraffin wax Bees wax and stearic acid Paraffin was and stearic acid Higher fatty acids and stearic acid Bees wax and paraffin wax ANSWER DOWNLOAD EXAMIANS APP
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