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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 can acid rain damage marble buildings?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Easy ScienceA farmer's soil has pH 8.5. He wants to reduce its basicity. Which method would be more suitable?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceIn a solution phenolphthalein is colourless but methyl orange is yellow. What type of solution could it be?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceWhen water is added to plaster of Paris, into which substance does it harden?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Easy ScienceWhy can the effectiveness of bleaching powder decrease when it is kept exposed to air for a long time?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceWhat is the correct order of gases formed at the anode and cathode in the chlor-alkali process?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceWhat is the main chemical difference between washing soda and baking soda?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceWhy does the blue colour return when water is added after heating blue copper sulphate crystals?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceIn an experiment with dry ammonia gas and moist red litmus paper, why can the litmus turn blue?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceIf dilute acid is added to both sodium carbonate and sodium hydrogen carbonate, which test will give the same result?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceA salt solution turns blue litmus red. From what type of acid and base could this salt be formed?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Hard ScienceWhat will be the approximate pH of the final solution in complete neutralisation of a strong acid and a strong base?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceWhy may food taste bitter if baking powder does not contain an acidic component along with baking soda?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceAn acidic solution is diluted with a large amount of water. Which conclusion is most scientific?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceWhy can sodium hydrogen carbonate be considered a useful antacid in excess acidity?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceIf the pH of a basic solution decreases from 13 to 10, what happens to its basicity?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Hard ScienceA student takes equal amounts of two acids. The first ionises completely and the second ionises partially. Which is more likely to have a lower pH?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceA student says all salts are neutral. Which answer correctly evaluates this statement?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceWhy can acid rain water be harmful for aquatic organisms?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceA dilute acid is added to a white solid, producing a gas that turns lime water milky. What could the white solid be?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium