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Manish was given aqueous solutions of si...

Manish was given aqueous solutions of silver nitrate, zinc sulphate and an iron nail. In the first experiment, he dipped iron nail in silver nitrate solution and observed that the solution turned brown. In second experiment, he dipped iron nail in zinc sulphate solution. However, no change was observed.
Based on the above information, answer the following questions.
Why did solution tum brown in the first experiment?

Text Solution

Verified by Experts

In the first experiment, iron displaces silver from silver nitrate solution to form ferrous nitrate and silver. Silver nitrate solution is colourless while the colour of ferrous nitrate solution is brown. Hence, the solution turned brown.
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Manish was given aqueous solutions of silver nitrate, zinc sulphate and an iron nail. In the first experiment, he dipped iron nail in silver nitrate solution and observed that the solution turned brown. In second experiment, he dipped iron nail in zinc sulphate solution. However, no change was observed. Based on the above information, answer the following questions. Will silver react with zinc sulphate solution?

Manish was given aqueous solutions of silver nitrate, zinc sulphate and an iron nail. In the first experiment, he dipped iron nail in silver nitrate solution and observed that the solution turned brown. In second experiment, he dipped iron nail in zinc sulphate solution. However, no change was observed. Based on the above information, answer the following questions. If he adds zinc strip in ferrous sulphate solution, what colour change will he observe?

Knowledge Check

  • Iron nails become ____after being dipped in copper sulphate solution

    A
    greenish
    B
    brownish
    C
    greyish
    D
    bluish

  • What happens when copper rod is dipped in iron sulphate solution?

    A
    Copper displaces iron
    B
    Blue colour of copper sulphate solution is obtained
    C
    No reaction takes place
    D
    Reaction is exothermic

  • Iron nails become _______ after being dipped in copper sulphate solution.

    A
    greenish
    B
    bluish
    C
    brownish
    D
    greyish

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    Manish was given aqueous solutions of silver nitrate, zinc sulphate and an iron nail. In the first experiment, he dipped iron nail in silver nitrate solution and observed that the solution turned brown. In second experiment, he dipped iron nail in zinc sulphate solution. However, no change was observed. Based on the above information, answer the following questions. Name the type of reaction that occurs when iron reacts with AgNO_3 solution.

    Manish was given aqueous solutions of silver nitrate, zinc sulphate and an iron nail. In the first experiment, he dipped iron nail in silver nitrate solution and observed that the solution turned brown. In second experiment, he dipped iron nail in zinc sulphate solution. However, no change was observed. Based on the above information, answer the following questions. Based on your observation, arrange Ag, Zn and Fe in decreasing order of their reactivity.

    Why copper cannot displace iron from iron sulphate solution?

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