Chemistry The two metal ions that cause hardness to water are: Sodium, Calcium Calcium, Magnesium Sodium, Potassium Sodium, Magnesium Sodium, Calcium Calcium, Magnesium Sodium, Potassium Sodium, Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Refrigerant 'FREON' is Fluorspar and Felspar Difluoro Dichloro Methane Hydrofluosilicic Acid Calcium Tetra Fluoride Fluorspar and Felspar Difluoro Dichloro Methane Hydrofluosilicic Acid Calcium Tetra Fluoride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following will replace hydrogen from acids to form salts ? S P Na Ag S P Na Ag ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most poisonous pollutant in water is Phosphate Detergent Zinc Arsenic Phosphate Detergent Zinc Arsenic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Solder is an alloy of Lead, zinc Copper, lead Tin, lead Sodium, lead Lead, zinc Copper, lead Tin, lead Sodium, lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is 'milk of magnesia' chemically? Sodium bicarbonate Magnesium hydroxide Magnesium carbonate Calcium hydroxide Sodium bicarbonate Magnesium hydroxide Magnesium carbonate Calcium hydroxide ANSWER DOWNLOAD EXAMIANS APP
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