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Copper Sulphate

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 kept in a blue copper sulphate solution for some time, the solution turns light green and a reddish-brown coating forms on the nail. What type of reaction is this?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Medium ScienceWhen an iron nail is placed in a blue copper sulphate solution, what is the main reason the solution turns green?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Medium ScienceA student placed an iron nail in a blue copper sulphate solution. After some time, a reddish-brown coating formed on the nail and the solution began to turn green. What type of reaction is this?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Medium ScienceWhich substance is displaced when an iron nail is placed in copper sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Medium ScienceWhich pair of products is formed when an iron nail is placed in copper sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Medium ScienceA student places a clean iron nail in a blue copper sulphate solution. After some time, the solution turns green and a reddish-brown coating appears on the nail. What is the correct conclusion from this experiment?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Medium ScienceWhy does a reddish-brown layer form on an iron nail placed in copper sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Medium 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 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 ScienceWhen an iron nail is placed in copper sulphate solution, the colour of the solution changes from blue to which colour?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 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 nail is placed in a blue copper sulphate solution for some time. Which observation is correct?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Easy 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