In the electrolytic refining of copper, which
In the electrolytic refining of copper, which of the following correctly describes the role of electrodes?
तांबे के विद्युत-अपघटनी शोधन में, निम्नलिखित में से कौन – सा विकल्प इलेक्ट्रोड की भूमिका का सही वर्णण करता हैं?
Detailed Solution & Logic
Impure copper is used as anode and pure copper as cathode/ अशुद्ध तांबे का उपयोग एनोड (Anode) के रूप में और शुद्ध तांबे का उपयोग कैथोड के रूप में किया जाता है
1️⃣ Anode (Positive Electrode / धनात्मक इलेक्ट्रोड):
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The impure copper is made the anode.
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During electrolysis, copper atoms lose electrons (oxidation) and go into the solution as Cu²⁺ ions.
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अर्थ: अशुद्ध तांबा को धनात्मक इलेक्ट्रोड बनाया जाता है। विद्युत-अपघटन के दौरान, तांबा के परमाणु इलेक्ट्रॉन्स खोकर (oxidation) Cu²⁺ आयन बनते हैं और विद्युत-आयनीक द्रव में चले जाते हैं।
2️⃣ Cathode (Negative Electrode / ऋणात्मक इलेक्ट्रोड):
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A pure copper sheet is made the cathode.
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Cu²⁺ ions from the solution gain electrons (reduction) and deposit on the cathode as pure copper.
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अर्थ: शुद्ध तांबे की चादर को ऋणात्मक इलेक्ट्रोड बनाया जाता है। समाधान में उपस्थित Cu²⁺ आयन इलेक्ट्रॉन्स ग्रहण करके (reduction) शुद्ध तांबा के रूप में चादर पर जमते हैं।
Extra Facts / अतिरिक्त तथ्य:
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Anode Mud / एनोड कीचड़:
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Impurities like silver, gold, platinum fall off or settle at the bottom of the electrolytic cell as anode mud.
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अशुद्धियाँ जैसे चांदी, सोना, प्लेटिनम एनोड कीचड़ के रूप में जमा हो जाती हैं।
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Electrolyte / विद्युत-आयनीक द्रव:
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Usually, a solution of dilute copper sulfate (CuSO₄) and H₂SO₄ is used.
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सामान्यतः घुला हुआ CuSO₄ और H₂SO₄ का घोल विद्युत-आयनीक द्रव के रूप में उपयोग किया जाता है।
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Purpose / उद्देश्य:
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To obtain high-purity copper (~99.99%).
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अत्यंत शुद्ध तांबा (~99.99%) प्राप्त करना।
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