Chemistry Permanent – hardness of water may be removed by addition of Potassium Permangante Sodium carbonate Alum Lime Potassium Permangante Sodium carbonate Alum Lime ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used to dilute oxygen for breathing by deep sea divers is: Helium Argon Neon Nitrogen Helium Argon Neon Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not present in cement ? Gypsum Alumina Alum Clay Gypsum Alumina Alum Clay ANSWER DOWNLOAD EXAMIANS APP
Chemistry Solder is an alloy of Tin, lead Lead, zinc Copper, lead Sodium, lead Tin, lead Lead, zinc Copper, lead Sodium, lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals is not a pollutant ? Lead Arsenic Mercury Aluminium Lead Arsenic Mercury Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stainless steel is usually made by alloying the steel with Copper and nickel Manganese and copper Chromium and nickel Copper and chromium Copper and nickel Manganese and copper Chromium and nickel Copper and chromium ANSWER DOWNLOAD EXAMIANS APP
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