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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।

ScienceWhy does dry hydrogen chloride gas not turn dry blue litmus paper red?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9MediumScienceIn which condition will an acid show its acidic behavior most clearly?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9MediumScienceHow is the gas formed in the reaction between sodium carbonate and dilute hydrochloric acid identified?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9MediumScienceA student added water to concentrated acid instead of adding concentrated acid to water. Why is this dangerous?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9MediumScienceHow is the acid present in lemon juice different from the acid present in curd?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9EasyScienceIf a solution turns red litmus blue and phenolphthalein pink, what is the nature of the solution?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9EasyScienceWhen zinc metal reacts with dilute sulphuric acid, which test is most suitable to identify the evolved gas?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9MediumScienceA student says that only water is formed when an acid and a base are mixed. Why is this answer incomplete?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceWhat type of substance would help reduce irritation caused by a nettle leaf sting?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceWhy is baking soda applied for relief from the acidic substance in an ant sting?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceWhy does acid rain slowly damage marble monuments?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceWhy can bubbles form when acid falls on marble?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceHow is carbon dioxide produced in a soda-acid fire extinguisher?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceA solution conducts electricity well, but the same substance in dry state does not. What is the most suitable reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceWhy does methyl orange show different colours in acidic and basic media?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumSciencePhenolphthalein is pink in a basic solution. What does becoming colourless on adding acid indicate?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceThe temperature rises when equal amounts of acid and base are mixed. What is the reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceIf the pH value of an acidic solution increases but remains below seven, what does it mean?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceWhy does the acidic effect decrease when an acidic solution is diluted with water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8MediumScienceWhy should acid be slowly added to water while diluting an acid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium