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Class 10 · Science · Medium
→If the pH of soil is very low, what effect can it have on plant growth?
Class 10 · Science · Medium
→Why is baking soda useful for reducing the effect of acid present in an ant sting?
Class 10 · Science · Medium
→Why does taking an antacid give relief when acidity increases in the stomach?
Class 10 · Science · Medium
→Which condition is more favourable for the beginning of tooth decay?
Class 10 · Science · Medium
→Why is rinsing the mouth after meals helpful in protecting tooth enamel?
Class 10 · Science · Medium
→How can acid rain damage marble buildings?
Class 10 · Science · Medium
→Why is it proper to store bleaching powder in a dry and closed container?
Class 10 · Science · Medium
→Which is the correct method of preparing bleaching powder?
Class 10 · Science · Medium
→The alkali left in solution during the chlor-alkali process is useful in which industry?
Class 10 · Science · Medium
→The gas formed near the cathode in the chlor-alkali process can be used in which process?
Class 10 · Science · Medium
→The gas produced near the anode in the chlor-alkali process can be used for which purpose?
Class 10 · Science · Medium
→Why is an aqueous solution of sodium chloride used in the chlor-alkali process?
Class 10 · Science · Medium
→Soap produces less lather in hard water. Why does adding washing soda improve lather formation?
Class 10 · Science · Medium
→Why does the presence of acid and baking soda together in baking powder make cake fluffy?
Class 10 · Science · Medium
→Why can the sodium carbonate formed on heating baking soda cause a bitter taste?
Class 10 · Science · Medium
→Due to which property is plaster of Paris used for making statues and moulds?
Class 10 · Science · Medium
→Why can overheating gypsum reduce its usefulness for preparing plaster of Paris?
Class 10 · Science · Medium
→Why can washing soda be called a hydrated salt?
Class 10 · Science · Medium
→In which substance is the presence of water of crystallisation easily shown by colour change?
Class 10 · Science · Medium
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