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#1. Which one of the following is not a product of the reaction when chlorine gas is bubbled through cold sodium hydroxide solution?
#2. Sulphur reacts with concentrated nitric acid to form;
#3. Which one of the following processes is not applied in water treatment?
#4. Element X burns in excess oxygen to form a yellow solid which dissolved in water to produce a colourless gas that is neutral to litmus and relights a glowing splint. Element X is;
#5. Which of the following is the best explanation for reducing the size of reactant particles in a chemical reaction?
#6. Which one of the following is not used to soften permanent hardness in water?
#7. A solution containing copper(II)ions will form.
#8. The gas produced when chlorine water is left exposed to sun light is;
#9. Which of the following polymers cause environmental pollution?
#10. An element P is immediately below iodine in group VII of the periodic table. Which one of the following properties is for element P.
#11. When 2.78g of a hydrated salt was heated, 1.52g of the anhydrous salt was formed. Which one of the following is the percentage of water of crystallization?
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