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Neutralisation

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

ScienceEqual volumes of acid and base are mixed, but the solution remains basic. What is the most likely reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 14HardScienceCopper oxide forms salt and water when added to dilute acid. What is the nature of copper oxide?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 14MediumScienceIf hydroxide ions are slowly added to an acidic solution, why will its pH increase?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 14MediumScienceMethyl orange is red and phenolphthalein is colourless in a solution. What should be added to neutralise it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 14MediumScienceIf a solution has pH 11 and phenolphthalein is pink, what will decrease first when acid is added?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceIf acid is slowly added to a basic solution, what change is expected near neutralisation?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceOn adding acid to a solution, the pink colour of phenolphthalein disappears. What was the initial nature of the solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceMetal oxides form salt and water with acids. This is an example of which broader rule?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceThe aqueous solution of a non-metal oxide turns blue litmus red. How can it react with a base?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceMethyl orange is red in a solution. On adding base, its colour becomes yellow. What is the conclusion?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceA substance forms salt and water with an acid but does not dissolve in water. What is it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceHow does basic toothpaste help prevent tooth decay?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceWhy does pH increase when hydroxide ions are added to an acidic solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceThe pH of a lake decreases due to acid rain. Adding lime raises the pH. What type of process is this?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceIf equal volumes of acid and base are mixed but the solution remains acidic, which reason may be correct?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13MediumScienceIf blue litmus turns red and methyl orange turns red in a solution, which substance can neutralise it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12EasyScienceMetal oxides react with acids to form salt and water. What general nature of metal oxides does this prove?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12MediumScienceIf one solution turns red litmus blue and another turns blue litmus red, what is likely to form when they are mixed?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12MediumScienceWhy does adding a suitable amount of slaked lime to acidic soil increase the pH?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12MediumScienceEqual volumes of an acid and a base are mixed, but pH does not become 7. Which reason is most scientific?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Hard