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RELATED QUESTIONS

Chemical Substances Nature And Behaviour

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

ScienceA question says acids and bases should be identified only by colour. What is the most correct exam-based answer?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Easy ScienceWhy does an acidic solution not immediately become basic when a large amount of water is added?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceIn the manufacture of bleaching powder, chlorine is passed over which substance?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceA substance forms salt and water with an acid but does not dissolve in water. What is it more correctly called?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceIf 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 12Easy ScienceA student says carbonates give hydrogen gas with acids. What is the correct correction?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Easy ScienceUniversal indicator is red in a solution. After adding water, the colour becomes orange. What does this show?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceWhat is the chemical reason for avoiding storage of curd in copper or brass vessels?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceThe aqueous solution of a non-metal oxide is acidic. Why can it react with lime water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceMetal 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 12Medium ScienceIf 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 12Medium ScienceWhy is acid rain harmful for aquatic organisms in lakes?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceIf an aqueous solution has pH close to 14, what careful conclusion should be taken while handling it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Easy ScienceWhich statement about salts is correct?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceWhy does adding a suitable amount of slaked lime to acidic soil increase the pH?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceA small amount of base is added to an acidic solution and pH changes from 2 to 3. What is the correct conclusion?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceA student says identifying acids by taste is the simplest method. Why is this idea wrong in the laboratory?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Easy ScienceWhich insoluble substance first forms when carbon dioxide is passed through lime water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceA solution has pH 7 and the universal indicator gives a light green colour. What nature does this indicate?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Easy ScienceThe gas obtained from an acid-metal reaction gives a pop sound near a burning splint. What is the conclusion of this test?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Easy