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Class 10

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

ScienceThe process by which organisms produce new organisms of their own kind is called what?Class 10World of LivingReproductionLevel 26Easy ScienceWhich system carries messages quickly in the body?Class 10World of LivingControl and CoordinationLevel 18Easy ScienceWhite anhydrous copper sulphate turns blue in the presence of water. In which test is this useful?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhen blue copper sulphate is heated, a white solid is formed. This change occurs due to the loss of what?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhy is zinc oxide called amphoteric?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhich oxide can react with both acids and bases?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceNon-metal oxides can form acidic solutions in water. Which of the following is an example?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceA metal oxide reacts with an acid to form salt and water. Which nature does this show?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceA sodium carbonate solution can turn red litmus blue. What type of salt is it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceAn aqueous solution of ammonium chloride can turn blue litmus red. What is the reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceIf a salt solution has no effect on either blue or red litmus paper, what may be its approximate pH?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium ScienceWhat colour does methyl orange generally show in a basic solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Easy ScienceIf phenolphthalein remains colourless in a solution, which conclusion is the most careful one?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceWhich salt is used to soften permanently hard water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceWhy is Plaster of Paris formed when gypsum is heated carefully?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceWhy is washing soda useful for softening hard water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceWhich names correctly identify baking soda and washing soda, respectively?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceWhy is a mild edible acid mixed with baking soda in baking powder?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceHow does baking soda help food rise on heating?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceWhich gas reacts with slaked lime to make bleaching powder?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium