Chemistry The gas used to extinguish fire is Carbon dioxide Neon Carbon monoxide Nitrogen Carbon dioxide Neon Carbon monoxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The green colour seen in firework displays is due to the chloride salt of : Sodium Calcium Strontium Barium Sodium Calcium Strontium Barium ANSWER DOWNLOAD EXAMIANS APP
Chemistry 0.01 mole of NaOH is added to 10 liters of water. The pH of water changes by 4 6 3 7 4 6 3 7 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The two metal ions that cause hardness to water are: Sodium, Potassium Sodium, Magnesium Sodium, Calcium Calcium, Magnesium Sodium, Potassium Sodium, Magnesium Sodium, Calcium Calcium, Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of Iron is : Pig iron Cast iron Steel Wrought iron Pig iron Cast iron Steel Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical name of common salt is Sodium Bicarbonate Sodium Oxide Sodium Sodium Chloride Sodium Bicarbonate Sodium Oxide Sodium Sodium Chloride ANSWER DOWNLOAD EXAMIANS APP
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