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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।

ScienceWhat colour does red litmus turn in a basic solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Easy ScienceWhat colour does blue litmus turn in an acidic solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 11Easy ScienceWhat effect does dry hydrogen chloride gas have on dry blue litmus paper?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Easy ScienceWhy does a dry acidic gas not change dry litmus?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Easy ScienceA student places red litmus paper in a solution, and it turns blue. What type of solution is it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Easy ScienceWhat colour does phenolphthalein become in a basic solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Easy ScienceWhat happens to the colour of moist blue litmus paper when it is exposed to hydrogen chloride gas?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Easy ScienceA student dipped blue litmus paper into a colourless solution, and it turned red. Which conclusion about the solution is correct?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Easy ScienceA student dips blue litmus paper into a solution, and it turns red. Which conclusion about the solution is correct?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Easy ScienceA student dissolved a white powder in water and added blue litmus to it. The litmus turned red. What type of substance is the powder most likely to be?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Easy ScienceWhich of the following substances acts as an olfactory indicator?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Easy ScienceWhich of the following substances acts as an indicator by changing colour in the presence of acids and bases?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Easy ScienceBases change red litmus paper into which colour?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Easy ScienceAcids change blue litmus paper into which colour?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Easy ScienceA student places blue litmus paper in an acidic solution. What colour will the litmus paper become?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 1Easy ScienceA student placed dry hydrogen chloride gas and dry blue litmus paper in a closed jar. The litmus showed no colour change. What is the correct reason for this observation?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 1Easy ScienceWhich of the following substances turns red litmus paper blue when dissolved in water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 1Easy ScienceWhat colour does methyl orange become in an acidic solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 1Easy ScienceA student dips red litmus paper into a soap solution. What will be the colour of the litmus paper?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 1Easy ScienceA student dips red litmus paper into a soap solution. What change will occur in the red litmus paper?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 1Easy