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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।

ScienceWhich statement about the nature of salts is incorrect?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceWhen acid is added to a solution, its pH goes below 7. Which ion has become relatively more abundant?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceWhen acid and base are added dropwise separately to a solution, its pH changes each time. What does this show?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceA solution has pH 7 but contains a dissolved salt. Which salt is most likely?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceBlue litmus turns red in a solution. Then sodium hydroxide is added drop by drop. What happens near the neutralisation point?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceAn aqueous solution feels soapy and turns red litmus blue. In which range is its pH most likely to be?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Easy 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 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 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 ScienceWhat happens to hydrogen-ion concentration when water is added to an acidic solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceIf the amount of hydroxide ions in a solution is increased, what will happen to its pH?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceSodium chloride is a salt formed from acidic and basic sources. Why is the pH of its aqueous solution about 7?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceA solution has pH close to 14. Why can touching it be dangerous?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Easy ScienceTooth decay starts rapidly when the pH falls below which value?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Easy ScienceWhich statement is correct when an acidic solution is diluted with water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceIf a solution has pH less than 7 and releases gas with a metal carbonate, what could the solution be?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Easy ScienceWhen water is added to a basic solution, the number of hydroxide ions per unit volume decreases. What will be the effect on pH?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Medium