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Chemical Reactions

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

ScienceIn galvanisation, iron is coated with a layer of which metal?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhat is the main purpose of painting iron to prevent rusting?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceRusting of iron is related to which process?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceA substance from which oxygen is removed undergoes which process?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhat is a substance called when oxygen is added to it?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhen oxygen is removed from copper(II) oxide, which process does copper(II) oxide undergo?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhich products are formed when copper(II) oxide is heated with hydrogen gas?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhat is exchanged in a double displacement reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhich precipitate is formed when aqueous barium chloride reacts with aqueous sodium sulphate?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhen two aqueous solutions are mixed and a white insoluble solid forms, what type of reaction is this?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhich of the following reactions is an example of a combination reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhich property of a metal is needed for a displacement reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhat coloured coating forms on an iron nail when it is placed in copper sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhen an iron nail is placed in a blue copper sulphate solution, which substance is formed in the solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceAn iron grill is kept for one week under different conditions. Under which condition is it most likely to rust?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhich two gases are produced during the electrolysis of water?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceIn the thermal decomposition of lead nitrate, in which form is energy supplied?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhich brown gas is evolved when lead nitrate is heated?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhat type of decomposition reaction occurs when silver chloride decomposes in the presence of sunlight?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceWhy does white silver chloride turn grey in sunlight?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy