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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 placed in a blue copper sulphate solution, the solution gradually turns 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 4Expert ScienceHow is the reaction Zn + CuSO₄ → ZnSO₄ + Cu most accurately classified?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceFading of blue colour of copper sulphate solution is linked with decrease of which ion?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Expert ScienceWhy does a green solution form when an iron nail is placed in copper sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Medium ScienceA student places a zinc strip in a blue copper sulphate solution and claims that no chemical reaction has occurred. Which observation would prove the student's conclusion wrong?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhen an iron nail is placed in blue copper sulphate solution, the solution turns 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 3Expert ScienceWhen an iron nail is immersed in a blue copper sulphate solution, the blue colour fades. This is mainly due to which ionic change?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhy does copper deposit on the surface of an iron nail placed in copper sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceWhy can the solution turn green when an iron nail is placed in copper sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceA student places a clean iron nail in a blue copper sulphate solution. Which observation most clearly shows that a displacement reaction has occurred?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceA student places a zinc strip in a blue copper sulphate solution and says that the blue colour fades because copper is more reactive than zinc. Which correction to this statement is correct?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Expert ScienceA student placed an iron nail in a blue copper sulphate solution. After some time, a reddish-brown coating appeared on the nail and the solution turned green. Which is the correct conclusion from this observation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Expert ScienceA student observed that when an iron nail was placed in a blue copper sulphate solution, the solution gradually turned green and a reddish-brown coating formed on the nail. What type of reaction is this?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Expert ScienceWhat is the ionic reason for fading of the blue colour of copper sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Expert ScienceWhy does a reddish-brown coating form on an iron nail placed in copper sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Expert ScienceAn iron nail is kept in a blue copper sulphate solution for some time. A reddish-brown coating forms on the nail and the solution turns light green. Which statement about this change is correct?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Hard ScienceWhen an iron nail is placed in a blue copper sulphate solution, the solution turns 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 5Hard ScienceWhen a zinc strip is placed in a blue copper sulphate solution, which observation indicates a displacement reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Hard ScienceA student places an iron nail in a blue copper sulphate solution. After some time, a reddish-brown coating appears on the nail and the solution turns light green. What type of reaction is this?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Hard ScienceIn which of the following reactions does a more reactive metal displace a less reactive metal from its salt solution?Class 10Metals and Non-metalsReactivity seriesLevel 5Medium