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Ph Scale

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

ScienceA small amount of base is added to an acidic solution and pH changes from 2 to 3. What is the correct conclusion?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Medium ScienceA solution gives green colour with universal indicator. When a small amount of acid is added, the colour becomes yellow. What does this show?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceA student says that pH zero means there is no acid. What is the correct evaluation?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceA solution shows pH 11, but after adding much water its pH becomes 9. What does this correctly mean?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceIf the pH of a solution changes from 2 to 5, what happens to the hydrogen ion concentration?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Hard ScienceIf one solution has one hundred times more hydrogen ions than another solution, by how much will its pH be lower approximately?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceIf pH is less than 7 but not very close to zero, what is the most balanced conclusion about the solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceIf the pH of a solution increases from 3 to 6, what happens to its acidity?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 6Medium ScienceIf a solution turns red litmus blue and shows pH 10, what is the most correct conclusion?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Easy ScienceIf the pH value increases from 7 to 11, what will be the nature of the solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Easy ScienceIf the pH value decreases from 7 to 3, what change occurs in the nature of the solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceFour solutions have pH values 1, 4, 8 and 13. Which one is the most acidic?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Easy ScienceFour solutions have pH values 2, 6, 7 and 12. Which one is the most basic?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Easy ScienceIf a solution has pH 2, what will be its nature?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Medium ScienceA solution with pH less than which value is considered acidic?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 7Easy ScienceBetween pH two and pH six, which solution will be more acidic?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Easy ScienceWhat is the nature of a solution with pH seven?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Easy ScienceWhat is the nature of a solution when its pH is greater than seven?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Easy ScienceWhat is the nature of a solution when its pH is less than seven?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Easy ScienceAcid rain generally has pH less than which value?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Easy