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RELATED QUESTIONS

Chemical Substances Nature And Behaviour

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

ScienceA student says acids only turn blue litmus red and show no other chemical property. Which response is correct?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceA sample gives a gas that turns lime water milky. On passing excess gas, the milkiness disappears. Which two calcium compounds form in order?Class 10Chemical Substances – Nature and BehaviourCarbon and its CompoundsLevel 10Hard ScienceIf a salt is formed by mixing an acid and a base, when is its aqueous nature most likely to be neutral?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceWhat is the correct scientific reason for avoiding storage of curd in copper or brass vessels?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceIf blue litmus turns red in a solution and its pH is 2, what changed when adding water makes the pH 4?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceWhat is the similarity in the reaction of carbonates and hydrogen carbonates with acids?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceA student says every base dissolves in water. What is the correct correction?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceAdding acid to a solution gives no carbon dioxide, but adding zinc gives hydrogen. What nature could the solution already have?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Hard ScienceWhich pair correctly matches the chemical name and common name?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Easy ScienceWater is added to an acidic solution but it remains acidic. What is the correct reason?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceA soil has pH 5 and crops are not growing well. Which method is scientifically more suitable?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceA sodium chloride solution has pH about 7 but conducts electricity. What idea does this clarify?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceIf blue litmus turns red in a solution and electric current also passes through it, which conclusion is strongest?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceA student suggests identifying an acidic solution by taste. Why is this suggestion unacceptable in the laboratory?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Easy ScienceAdding sodium carbonate to a solution gives no gas, but adding acid to sodium carbonate gives gas. What does this indicate?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceWhy is bleaching powder used for disinfecting drinking water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceIf a solution has pH close to 14 and feels slippery on skin, what is the safest conclusion?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceA solution is acidic but very dilute. Around what pH can it be?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium ScienceWhich option correctly shows the relationship among gypsum, plaster of Paris, and water?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Hard ScienceWhy is the pH of acid rain lower than that of normal rain?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 10Medium