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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।

ScienceCopper oxide forms a coloured salt solution when added to dilute acid. What nature of copper oxide is shown?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceIf hydroxide ions are added to an acidic solution, what change will occur first?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceIf phenolphthalein is added to an acidic solution and then a base is added slowly, when will the pink colour appear?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceUniversal indicator gives blue colour in a solution. After adding acid, the colour becomes green. What does this mean?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhy does pH increase when hydroxide ions are added to an acidic solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceAn acid and a base are mixed in equal volumes, but the pH does not become 7. Which reason is most possible?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhy does applying a mild basic substance give relief when an ant sting contains an acidic substance?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Easy ScienceWhich statement best describes the general nature of metal oxides?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceRed litmus turns blue in a solution. Acid is added gradually, and finally both litmus papers show no change. What is the final state?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium SciencePlant roots are not growing well in highly acidic soil. Which substance will be useful in a suitable amount?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceIn an experiment, solution A turns blue litmus red and solution B turns red litmus blue. When mixed in suitable amounts, the temperature rises slightly. This proves which reaction?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceRed litmus turns blue in a solution, and after adding acid both red and blue litmus show no change. What is the nature of the final solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceIf a substance forms salt and water with an acid but is insoluble in water, how should it be classified?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceIf equal volumes of an acid and a base are mixed but the pH does not become 7, what could be a possible reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceIf copper oxide is added to dilute hydrochloric acid, a blue-green solution may form. What nature does this prove?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceThe temperature rises slightly when sodium hydroxide is added to an acidic solution. What is the reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceMethyl orange is red in a solution, but it becomes yellow when base is added slowly. What does this show?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceLime is added to an acidic lake and the pH of water increases. Which process is this an example of?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceLime is added to improve acidic soil. What problem can occur if too much lime is added?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceA metal oxide is added to an acid and salt and water are formed. What type of reaction is this?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium