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Stoichiometry

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

ScienceEqual volumes of an acid and a base are mixed, but pH does not become 7. Which reason is most scientific?Class 10Chemical Substances – Nature and BehaviourAcids, Bases, and SaltsLevel 12Hard ScienceIn electrolysis of water, if hydrogen is thirty-six millilitres, what will be the expected volume of oxygen?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Medium ScienceWhich statement best explains the scientific need for a balanced chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Medium ScienceDuring electrolysis of water, if the volume of oxygen produced is 12 mL at the same temperature and pressure, what volume of hydrogen is produced?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhy is the volume of gas collected at the anode lower during electrolysis of acidified water?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Expert ScienceHow many oxygen atoms are required to form two water molecules?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Expert ScienceIn the reaction (2 ext{Al}+3 ext{CuCl}_2 ightarrow2 ext{AlCl}_3+3 ext{Cu}), a student says that 1 mol of aluminium will produce 1 mol of copper. Which statement correctly corrects the error?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceIn the electrolysis of water, the volumes of gases collected at the cathode and anode are in the ratio 2:1. If the gas with the lower volume is oxygen, which gas has the higher volume?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Hard ScienceWhy is the volume of hydrogen collected at the cathode approximately twice the volume of oxygen collected at the anode during electrolysis of water?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Hard ScienceWhy is the volume of hydrogen gas greater than the volume of oxygen gas during electrolysis of water?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Medium ScienceWhat is the volume ratio of hydrogen to oxygen gases produced during the electrolysis of water?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Medium ScienceIn the balanced chemical equation for the formation of water, \(2\mathrm{H_2} + \mathrm{O_2} \rightarrow 2\mathrm{H_2O}\), what is the ratio of hydrogen molecules to oxygen molecules?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Medium ScienceWhy is a chemical equation more useful than a word equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy