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Class 10 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceAn aqueous solution of ammonium chloride can turn blue litmus red. What is the reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceIf a salt solution has no effect on either blue or red litmus paper, what may be its approximate pH?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhich is the correct group of three main products obtained in the chlor-alkali process?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhich process is used to obtain sodium hydroxide from common salt?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceDue to which property is bleaching powder used in water purification?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceHow does washing soda help in softening hard water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhat is the main benefit of adding a mild edible acid with baking soda in baking powder?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhy can sodium hydrogen carbonate be used in fire extinguishers?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceAn antacid taken for excess stomach acid works on which principle?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceThe condition that damages tooth enamel is related to which of the following?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhich substance can be added to basic soil so that acidic substances may gradually form?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhich substance is most suitable for treating acidic soil?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhich substance will react with an acid to give carbon dioxide instead of hydrogen?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceA metal and an acid react to form a salt and hydrogen gas. If the metal is magnesium and the acid is sulphuric acid, which salt will be formed?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceThe gas formed in an acid and metal carbonate reaction can make lime water clear again when passed in excess. What is the reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium SciencePhenolphthalein turns pink and methyl orange turns yellow in a solution. What is the nature of this solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceIn a solution, red litmus turns blue, but blue litmus shows no change. What type of solution is it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Easy ScienceIn a solution, blue litmus turns red, but red litmus shows no change. What is the nature of the solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Easy ScienceIf a basic solution has pH 13, in which direction will it change when water is added?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceIf two acidic solutions have pH values 2 and 4 respectively, which one has a higher concentration of hydrogen ions?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium