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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।

ScienceWhy does pH increase when hydroxide ions are added to an acidic solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceA student says every salt solution is neutral. Which example will disprove this statement?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceCarbon dioxide is passed into a solution. Milkiness appears first and then disappears. Which substance causes the initial milkiness?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhich product obtained from common salt is useful in soap and paper industries?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceIf a basic solution is diluted with water, in which direction will its pH move?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhich substance can be used both for removing colour in the textile industry and for disinfecting water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceMagnesium gives brisk bubbles with an acid, but copper does not. What is the reason?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 ScienceIf turmeric turns reddish-brown and phenolphthalein turns pink in a solution, what is the nature of the solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Easy 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 ScienceIn electrolysis of brine, which product is formed at the anode and what is one use of it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceA salt solution shows pH 7 and conducts electricity. It may be an example of which type of salt?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceIf a few drops of acid fall on the skin, what should be done first?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Easy ScienceA blue salt becomes white on heating and turns blue again when water is added. Which salt could it be?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhy are baking soda and an edible acid both kept in baking powder?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceThe aqueous solution of a non-metal oxide turns blue litmus red. What is the nature of the non-metal oxide?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhich statement best describes the general nature of metal oxides?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceIf a little base is added to an acidic solution and its pH changes from 3 to 4, what is the correct conclusion?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Hard ScienceWhy is gas not released every time a metal is added to an acidic solution?Class 10Chemical Substances – Nature and BehaviourMetals and Non-metalsLevel 11Hard 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