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Class 10 · Science · Easy
→Which gas does baking soda give on reacting with an acid?
Class 10 · Science · Easy
→Washing soda softens hard water by removing which ions?
Class 10 · Science · Easy
→What is meant by water of crystallisation?
Class 10 · Science · Easy
→Why does the blue colour of copper sulphate disappear on heating?
Class 10 · Science · Easy
→What causes the blue colour of copper sulphate crystals?
Class 10 · Science · Easy
→Why does plaster of Paris become hard when water is added?
Class 10 · Science · Easy
→What substance is formed when gypsum is heated?
Class 10 · Science · Easy
→Why is bleaching powder useful for disinfecting water?
Class 10 · Science · Easy
→To prepare bleaching powder, chlorine is passed over which substance?
Class 10 · Science · Easy
→Which gas is used to prepare bleaching powder?
Class 10 · Science · Easy
→What is the chemical name of plaster of Paris?
Class 10 · Science · Easy
→What is the chemical name of common salt?
Class 10 · Science · Easy
→What is the chemical name of washing soda?
Class 10 · Science · Easy
→What is the chemical name of baking soda?
Class 10 · Science · Easy
→Copper oxide forms salt and water with acid. What type of oxide is it?
Class 10 · Science · Easy
→What is the general nature of non-metal oxides?
Class 10 · Science · Easy
→What is the general nature of metal oxides?
Class 10 · Science · Easy
→Milkiness of lime water is due to formation of which substance?
Class 10 · Science · Easy
→What change occurs in lime water to identify carbon dioxide?
Class 10 · Science · Easy
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