Chemistry Permanent – hardness of water may be removed by addition of Potassium Permangante Lime Sodium carbonate Alum Potassium Permangante Lime Sodium carbonate Alum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used as an anti-freeze for the automobile engines ? Ethanol Ethylene glycol Propyl alcohol Methanol Ethanol Ethylene glycol Propyl alcohol Methanol ANSWER DOWNLOAD EXAMIANS APP
Chemistry When there are two electrons in the same orbital, they have: No spin Same or opposite spin Same spin Opposite spin No spin Same or opposite spin Same spin Opposite spin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of halogen elements found in the periodic table is 5 3 13 8 5 3 13 8 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following laser types is used in a laser printer? Semiconductor laser Excimer laser Gas laser Dye laser Semiconductor laser Excimer laser Gas laser Dye laser ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief source of naphthalene is Camphor Diesel Coal-tar Charcoal Camphor Diesel Coal-tar Charcoal ANSWER DOWNLOAD EXAMIANS APP
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