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

ScienceIn the electrolysis of brine in the chlor-alkali process, what is the correct order of gases formed at anode and cathode?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceIn which condition will aquatic organisms in a river or lake be at greater risk from acid rain?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceWhat role do sulphur dioxide and nitrogen oxides play in acid rain?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceBetween equal concentration solutions of vinegar acid and hydrochloric acid, which can produce more ions?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceThe difference between a strong acid and a weak acid is mainly based on what?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceWhich statement about dilute acid and concentrated acid is correct?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceWhich substance increases the amount of hydroxide ions when dissolved in water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Easy ScienceWhich salt is formed when calcium hydroxide reacts with hydrochloric acid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceWhich salt is formed by complete neutralisation of sodium hydroxide and sulphuric acid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceWhy does copper generally not produce hydrogen gas with dilute hydrochloric acid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceA gas released in the reaction of a metal with an acid gives a pop sound near a burning splint. Which gas is it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceIn which reaction is a gas most likely to form that turns lime water milky?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceA solution turns red litmus blue and gives pink colour with phenolphthalein. What is the nature of the solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Easy ScienceAn unknown solution turns blue litmus red and remains colourless with phenolphthalein. Which conclusion is correct?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Easy ScienceFour solutions have pH values 5, 7, 9 and 11. Which acidic solution among them is least harmful to teeth?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceA basic solution has pH 12. What happens to its pH when water is added?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceA solution has pH 4. When water is added to the same solution, in which direction is its pH likely to change?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceIf a small amount of base is dissolved in water, in which direction will the pH of the solution move?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceWhen a small amount of acid is mixed with water, the amount of which ion increases in the solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceA solution turns blue litmus red and releases gas with a metal carbonate. What type of solution is it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Easy