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Class10

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

ScienceWhich salt is formed when calcium hydroxide reacts with hydrochloric acid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceWhich salt is formed by complete neutralisation of sodium hydroxide and sulphuric acid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceWhy does copper generally not produce hydrogen gas with dilute hydrochloric acid?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceA gas released in the reaction of a metal with an acid gives a pop sound near a burning splint. Which gas is it?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceIn which reaction is a gas most likely to form that turns lime water milky?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 9Medium ScienceOnion juice is an example of which type of indicator?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceOn what basis do olfactory indicators help identify acids and bases?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceIn an acid-base reaction, if an indicator stops changing colour, what condition may it indicate?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceMetal oxides react with acids to form salt and water. What nature does this prove?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceWhy are non-metal oxides called acidic oxides?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceWhat is the usual nature of an aqueous solution of sodium carbonate?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceWhat is the usual nature of an aqueous solution of ammonium chloride?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceWhy is an aqueous solution of sodium chloride nearly neutral?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceOn what can the pH of a salt depend?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceWhy is plaster of Paris stored away from moisture?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceWhich substance is formed when gypsum is heated at about 373 K?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceWhich statement about water of crystallisation is correct?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Easy ScienceWhy does the blue colour return when water is added to white copper sulphate?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceWhy does adding washing soda to hard water help in washing?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Medium ScienceThe formula of washing soda shows sodium carbonate decahydrate. What does the word decahydrate indicate?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 8Easy