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Class 10 · Science · Medium
→If a base is slowly added to an acidic solution, what happens to the pH value?
Class 10 · Science · Easy
→In which reaction are both salt and water definitely formed?
Class 10 · Science · Medium
→Which statement is correct for acids?
Class 10 · Science · Medium
→Why do crystals of sodium carbonate lose some mass on heating?
Class 10 · Science · Medium
→Why is a mild acid mixed with baking soda in baking powder?
Class 10 · Science · Easy
→Which substance is commonly called baking soda?
Class 10 · Science · Easy
→Chlorine produced in the chlor-alkali process is used in which application?
Class 10 · Science · Medium
→In the process of making sodium hydroxide from sodium chloride solution, which gases are also produced?
Class 10 · Science · Medium
→Why can bleaching powder lose its effectiveness when kept open in air?
Class 10 · Science · Easy
→The main active component of bleaching powder is formed due to which gas?
Class 10 · Science · Easy
→Why is plaster of Paris used to support a fractured bone?
Class 10 · Science · Medium
→Why is plaster of Paris kept in a closed container away from moisture?
Class 10 · Science · Medium
→Why does white anhydrous copper sulphate turn blue again when water is added?
Class 10 · Science · Medium
→Why do blue copper sulphate crystals turn white on heating?
Class 10 · Science · Easy
→Which is the most correct meaning of water of crystallisation?
Class 10 · Science · Medium
→How does washing soda help in softening hard water?
Class 10 · Science · Easy
→What is the chemical name of washing soda?
Class 10 · Science · Medium
→Why does baking powder help cakes rise?
Class 10 · Science · Medium
→What main change occurs when baking soda is heated?
Class 10 · Science · Medium
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