Chemistry Permanent – hardness of water may be removed by addition of Potassium Permangante Sodium carbonate Lime Alum Potassium Permangante Sodium carbonate Lime Alum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chile saltpeter is the common name of: Potassium nitrate Sodium nitrite Potassium nitrite Sodium nitrate Potassium nitrate Sodium nitrite Potassium nitrite Sodium nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metallic constituents of hard water are : Magnesium, tin and iron Magnesium, calcium and tin Iron, tin and calcium Calcium, magnesium and iron Magnesium, tin and iron Magnesium, calcium and tin Iron, tin and calcium Calcium, magnesium and iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not present in cement ? Gypsum Alumina Clay Alum Gypsum Alumina Clay Alum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main active constituent of tea and coffee is caffeine chlorophyll aspirin nicotine caffeine chlorophyll aspirin nicotine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Air is said to be saturated when : It contains maximum content of water vapour Its pressure is minimum It blows over the barren land Its thickness is maximum It contains maximum content of water vapour Its pressure is minimum It blows over the barren land Its thickness is maximum ANSWER DOWNLOAD EXAMIANS APP
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