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    Wednesday, August 26, 2026

    In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal. Write down the reaction involved.

    Refining of Silver by Copper | Displacement Reaction | Class 10
    🥈 Recovery of Silver from Silver Nitrate Solution
    Displacement of Silver by Copper Metal
    चाँदी के नाइट्रेट विलयन से Copper द्वारा Silver का विस्थापन
    1️⃣ Concept / अवधारणा
    English:

    Silver can be recovered from its silver nitrate solution by using copper metal. Copper is more reactive than silver. Therefore, copper displaces silver from silver nitrate solution.

    Hindi:

    Silver nitrate के विलयन से silver को copper metal द्वारा प्राप्त किया जा सकता है। Copper, silver से अधिक क्रियाशील है। इसलिए copper, silver nitrate से silver को विस्थापित कर देता है।
    Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag
    2️⃣ Attractive Reaction Animation
    ⚗️ Copper Displaces Silver from AgNO₃
    Ag⁺
    Ag⁺
    Ag⁺
    Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag↓
    3️⃣ Why does Copper displace Silver?
    English: Copper is placed above silver in the reactivity series. Therefore:
    Copper > Silver
    Hence copper is more reactive and can displace silver from its salt solution.

    Hindi: Reactivity series में copper, silver से ऊपर होता है। इसलिए copper अधिक क्रियाशील है और silver को उसके salt solution से विस्थापित कर सकता है।
    Remember:
    A more reactive metal can displace a less reactive metal from its salt solution.

    याद रखें:
    अधिक क्रियाशील धातु कम क्रियाशील धातु को उसके लवण के विलयन से विस्थापित कर सकती है।
    4️⃣ Step-by-Step Full Solution / पूर्ण समाधान
    Step 1: Silver nitrate solution is taken.
    AgNO₃ → Ag⁺ + NO₃⁻
    Step 2: Copper metal is introduced into the solution.
    Copper is more reactive than silver.
    Step 3: Copper loses electrons:
    Cu → Cu²⁺ + 2e⁻
    Step 4: Silver ions gain electrons:
    2Ag⁺ + 2e⁻ → 2Ag
    Step 5: Combining both half reactions:
    Cu + 2Ag⁺ → Cu²⁺ + 2Ag
    Step 6: Including nitrate ions:
    Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag
    Final:

    Silver is deposited as solid silver while copper goes into solution as copper(II) ions.

    अंतिम परिणाम:

    Silver solid form में जमा होती है और copper solution में copper(II) ions के रूप में चला जाता है।
    5️⃣ CBSE Question — Full Answer
    Q. In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal. Write down the reaction involved.
    CBSE Board Question
    English Answer:

    Copper is more reactive than silver. Therefore, copper displaces silver from silver nitrate solution.

    The reaction involved is:
    Cu(s) + 2AgNO₃(aq) → Cu(NO₃)₂(aq) + 2Ag(s)

    Hindi Answer:

    Copper, silver से अधिक क्रियाशील है। इसलिए copper, silver nitrate के विलयन से silver को विस्थापित करता है।

    अभिक्रिया:
    Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag
    6️⃣ Observation / अवलोकन
    What happens?

    1. Silver gets deposited on copper.
    2. Copper slowly dissolves.
    3. Cu(NO₃)₂ is formed in the solution.
    4. The reaction is a displacement reaction.
    क्या होता है?

    1. Copper पर silver जमा होती है।
    2. Copper धीरे-धीरे विलयन में घुलता है।
    3. Copper nitrate बनता है।
    4. यह विस्थापन अभिक्रिया है।
    7️⃣ Exam Points / परीक्षा के महत्वपूर्ण बिंदु
    ⭐ Copper is more reactive than silver.

    ⭐ Copper displaces silver from AgNO₃.

    ⭐ Silver is deposited in elemental form.

    ⭐ Cu(NO₃)₂ is formed.

    ⭐ Reaction type = Displacement reaction.

    ⭐ Balanced equation:
    Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag
    8️⃣ Practice MCQs
    9️⃣ Assertion–Reason
    🔟 2 Marks Questions
    1️⃣1️⃣ 3 Marks Questions
    1️⃣2️⃣ 4 Marks Questions
    1️⃣3️⃣ 5 Marks Questions
    1️⃣4️⃣ 6 Marks Questions
    🏆 Final Revision / अंतिम Revision
    Most Important Equation:
    Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag
    Reaction Type:
    Displacement Reaction / विस्थापन अभिक्रिया

    Reason:
    Copper is more reactive than silver.

    Result:
    Silver is recovered/deposited from silver nitrate solution.

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