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Reactivity Series

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

ScienceWhen an iron nail is placed in copper sulphate solution, which salt is mainly present in the green solution formed?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Medium ScienceWhen a zinc strip is placed in copper sulphate solution, which statement is correct?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Medium ScienceWhy does the blue colour of copper sulphate solution fade and turn green when an iron nail is added?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Medium ScienceA clean iron nail is immersed in a blue copper sulphate solution for some time. Which observation is correct?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhy can copper not displace zinc from zinc sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhen a zinc strip is placed in copper sulphate solution, which metal is deposited as a coating on the zinc surface?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceA student places a clean iron nail in a blue copper sulphate solution. Which observation after some time confirms that a displacement reaction has occurred?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceWhen an iron nail is kept in a blue copper sulphate solution for some time, the solution fades and a reddish-brown coating forms on the nail. Which type of reaction does this represent?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy ScienceA student places a clean iron nail in a blue copper sulphate solution for 20 minutes. Which observation correctly confirms that a displacement reaction has occurred?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 6Easy ScienceHow does applying oil to iron mainly prevent rusting?Class 10Metals and Non-metalsReactivity seriesLevel 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 copper sulphate solution, the pale green solution formed mainly contains which substance?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Easy ScienceWhen an iron nail is placed in copper sulphate solution, what is the reddish-brown coating formed on the nail?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Easy ScienceIn a metal displacement reaction, which metal displaces another metal from its compound or salt solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Easy ScienceWhich substance is deposited on the surface of zinc when it is placed in copper sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Easy ScienceWhy does a displacement reaction not occur when a copper strip is placed in zinc sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Easy ScienceWhen an iron nail is placed in copper sulphate solution, which metal is deposited on the surface of the nail?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Easy ScienceWhat is the reaction called when a more reactive metal displaces a less reactive metal from its compound?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Easy