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Acids

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

ScienceThe temperature rises during the reaction between hydrochloric acid and sodium hydroxide. What does this show?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Easy ScienceFor which use is chlorine gas most suitably used?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Easy ScienceWhich gas is evolved at the cathode in the chlor-alkali process?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceIn the chlor-alkali process, which correct pair of products is obtained from aqueous sodium chloride solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceWhy is a mild edible acid mixed with baking soda in baking powder?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceWhy is sodium hydrogen carbonate used to make food items rise during cooking?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Easy ScienceWhy is plaster of Paris stored in a closed container away from moisture?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Easy ScienceOn heating blue vitriol, its blue colour turns white. On adding a few drops of water, the blue colour returns. What is the main reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceWhich pair contains substances that can both be used to reduce acidity?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceIf much heat is released while mixing acid with water, what is the safe method?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Easy ScienceIn which situation will a neutralisation reaction certainly occur?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Easy ScienceA substance dissolves in water to produce hydroxide ions and feels soapy to touch. Which class does it belong to?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Easy ScienceThe pH of aqueous sodium chloride solution is nearly 7. What is the correct reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceA student measures the pH of four solutions: 2, 6, 7, and 11. Which solution will have the highest hydroxide ion concentration?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceWhen acid is added to a metal carbonate, the evolved gas turns lime water milky. What is the correct identification and reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceWhich product is not formed when baking soda is heated?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceMethyl orange turns red in a colourless solution. On adding sodium hydroxide slowly, the colour changes to yellow. What process does this indicate?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceA white powder releases heat when mixed with water and forms a milky solution. Passing carbon dioxide through this solution gives a white precipitate. What can the powder be?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Hard ScienceIf sodium hydroxide solution is left exposed to air, which substance may form over time?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium ScienceTo protect tooth enamel from decay, pH should be prevented from falling below which approximate value?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 13Medium