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Only One Option Correct Type
Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.
Q.
In the electrolytic refining of zinc
- a)the impure metal is at the cathode
- b)graphite is at the anode
- c)acidified zinc sulphate is the electrolyte
- d)the metal ion gets reduced at the anode
Correct answer is option 'C'. Can you explain this answer?
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Only One Option Correct TypeDirection (Q. Nos. 1-10) This section cont...
Electrodes are suspended in an electrolyte which is the solution of a soluble salt of the metal usually a double salt of the metal.
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Only One Option Correct TypeDirection (Q. Nos. 1-10) This section cont...
In the electrolytic refining of zinc, the impure metal is at the cathode, not the anode. The correct answer is option 'A'.
Explanation:
Electrolytic refining is a process used to purify metals extracted from ores. It involves the use of an electrolytic cell, where a direct electric current is passed through an electrolyte solution containing the impure metal.
In the case of zinc, the impure metal is placed at the anode, not the cathode. The anode is the positive electrode, where oxidation occurs. The impure zinc is oxidized and forms zinc ions (Zn2+) in the electrolyte solution.
At the cathode, which is the negative electrode, pure zinc is deposited. This is achieved by the reduction of zinc ions (Zn2+) from the electrolyte. The pure zinc atoms are reduced and form a layer of pure zinc on the cathode.
Graphite is typically used as the anode material in the electrolytic refining of zinc. Graphite is a good conductor of electricity and can withstand the harsh conditions of the electrolytic process.
The electrolyte used in the refining of zinc is not acidified zinc sulphate. Instead, it is a solution of zinc sulphate (ZnSO4) or a mixture of zinc sulphate and other salts. The presence of zinc sulphate enables the transfer of zinc ions between the anode and cathode.
To summarize:
- The impure metal (zinc) is placed at the anode, not the cathode.
- Graphite is used as the anode material.
- The electrolyte used is a solution of zinc sulphate or a mixture of zinc sulphate and other salts.
- The reduction of zinc ions occurs at the cathode, leading to the deposition of pure zinc.
Remember, in multiple-choice questions, it is important to carefully read and understand each option before selecting the correct answer.
Explanation:
Electrolytic refining is a process used to purify metals extracted from ores. It involves the use of an electrolytic cell, where a direct electric current is passed through an electrolyte solution containing the impure metal.
In the case of zinc, the impure metal is placed at the anode, not the cathode. The anode is the positive electrode, where oxidation occurs. The impure zinc is oxidized and forms zinc ions (Zn2+) in the electrolyte solution.
At the cathode, which is the negative electrode, pure zinc is deposited. This is achieved by the reduction of zinc ions (Zn2+) from the electrolyte. The pure zinc atoms are reduced and form a layer of pure zinc on the cathode.
Graphite is typically used as the anode material in the electrolytic refining of zinc. Graphite is a good conductor of electricity and can withstand the harsh conditions of the electrolytic process.
The electrolyte used in the refining of zinc is not acidified zinc sulphate. Instead, it is a solution of zinc sulphate (ZnSO4) or a mixture of zinc sulphate and other salts. The presence of zinc sulphate enables the transfer of zinc ions between the anode and cathode.
To summarize:
- The impure metal (zinc) is placed at the anode, not the cathode.
- Graphite is used as the anode material.
- The electrolyte used is a solution of zinc sulphate or a mixture of zinc sulphate and other salts.
- The reduction of zinc ions occurs at the cathode, leading to the deposition of pure zinc.
Remember, in multiple-choice questions, it is important to carefully read and understand each option before selecting the correct answer.
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Only One Option Correct TypeDirection (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.In the electrolytic refining of zinca)the impure metal is at the cathodeb)graphite is at the anodec)acidified zinc sulphate is the electrolyted)the metal ion gets reduced at the anodeCorrect answer is option 'C'. Can you explain this answer?
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Only One Option Correct TypeDirection (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.In the electrolytic refining of zinca)the impure metal is at the cathodeb)graphite is at the anodec)acidified zinc sulphate is the electrolyted)the metal ion gets reduced at the anodeCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Only One Option Correct TypeDirection (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.In the electrolytic refining of zinca)the impure metal is at the cathodeb)graphite is at the anodec)acidified zinc sulphate is the electrolyted)the metal ion gets reduced at the anodeCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Only One Option Correct TypeDirection (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.In the electrolytic refining of zinca)the impure metal is at the cathodeb)graphite is at the anodec)acidified zinc sulphate is the electrolyted)the metal ion gets reduced at the anodeCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Only One Option Correct TypeDirection (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.Q.In the electrolytic refining of zinca)the impure metal is at the cathodeb)graphite is at the anodec)acidified zinc sulphate is the electrolyted)the metal ion gets reduced at the anodeCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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