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And Salts

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

ScienceHow can acid rain affect organisms living in lake water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceWhich precaution is most suitable while handling a solution of pH 13?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Easy ScienceWhich statement about the nature of salts is scientifically correct?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceWhy does adding a suitable amount of slaked lime to acidic soil increase pH?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceThe pH of an acidic solution changes from 1 to 4. What happens to acidity?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceWhy is identifying an acid by taste unacceptable in the laboratory?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Easy ScienceWhen carbon dioxide is passed into limewater, which substance causes the milkiness?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceIf the effects of hydrogen and hydroxide ions in a solution are approximately balanced, what colour will a universal indicator show?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Easy ScienceWhich test identifies the gas released when an acid reacts with an active metal?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceAn aqueous solution has pH 12 and feels soapy. What is the safest conclusion?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceWhich pair is correctly matched?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceAn acidic gas has no effect on dry blue litmus but turns moist blue litmus red. Why?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceA soil sample has pH 9. Which is a more suitable way to improve its condition for crops?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Hard ScienceAn acidic solution produces brisk bubbles with magnesium but not with silver. What does this observation show?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceWhat is the main reason for storing bleaching powder in a dry, closed container?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceIf pH changes from 4 to 7, what happens to the hydrogen-ion concentration?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceWhich important base is obtained by electrolysis of aqueous common salt solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceEven after mixing equal volumes of acid and base, the solution remains acidic. What is the most likely reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium ScienceTurmeric becomes reddish-brown and phenolphthalein becomes pink in a solution. What is the nature of the solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Easy ScienceCopper oxide forms salt and water with acid. What nature of copper oxide is proved by this?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 15Medium