NEET Exam > NEET Questions > Cryolite isa)Na₃AlF₆ and is used in the elect...
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Cryolite is
- a)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivity
- b)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of alumina
- c)Na₃AlF₆ and is used in the electrolytic purification of alumina
- d)Na₃AlF₆ and is used in the electrolysis of alumina
Correct answer is option 'B'. Can you explain this answer?
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Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for de...
Aluminium oxide has a very high melting point (over 2,000C), so it would be expensive to melt it. Instead, it is dissolved in molten cryolite, an aluminium compound with a lower melting point than aluminium oxide. The use of cryolite reduces some of the energy costs involved in extracting aluminium.
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Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for de...
Cryolite is an important compound used in the production of aluminium metal through the process of electrolysis. Let's understand the correct option in detail:
B) Na₃AlF₆ is used in the electrolysis of alumina for lowering the melting point of alumina.
The process of producing aluminium metal involves the electrolysis of alumina (Al₂O₃). However, the melting point of alumina is very high (around 2050°C), which makes it difficult to conduct the electrolysis process.
Cryolite (Na₃AlF₆) is added to the alumina to lower its melting point. This is because cryolite has a much lower melting point (around 1012°C) than alumina. When the mixture of alumina and cryolite is heated to a temperature of around 960-980°C, it melts and becomes a molten electrolyte.
In this molten electrolyte, the aluminium ions are positively charged and are attracted to the negatively charged cathode. At the cathode, the aluminium ions gain electrons and become aluminium metal. This process also releases oxygen gas at the anode.
Thus, cryolite plays a crucial role in the production of aluminium metal by reducing the melting point of alumina and making the electrolysis process more efficient.
B) Na₃AlF₆ is used in the electrolysis of alumina for lowering the melting point of alumina.
The process of producing aluminium metal involves the electrolysis of alumina (Al₂O₃). However, the melting point of alumina is very high (around 2050°C), which makes it difficult to conduct the electrolysis process.
Cryolite (Na₃AlF₆) is added to the alumina to lower its melting point. This is because cryolite has a much lower melting point (around 1012°C) than alumina. When the mixture of alumina and cryolite is heated to a temperature of around 960-980°C, it melts and becomes a molten electrolyte.
In this molten electrolyte, the aluminium ions are positively charged and are attracted to the negatively charged cathode. At the cathode, the aluminium ions gain electrons and become aluminium metal. This process also releases oxygen gas at the anode.
Thus, cryolite plays a crucial role in the production of aluminium metal by reducing the melting point of alumina and making the electrolysis process more efficient.
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Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer?
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Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer?.
Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Here you can find the meaning of Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Cryolite isa)Na₃AlF₆ and is used in the electrolysis of alumina for decreasing electrical conductivityb)Na₃AlF₆ and is used in the electrolysis of alumina for lowering the melting point of aluminac)Na₃AlF₆ and is used in the electrolytic purification of aluminad)Na₃AlF₆ and is used in the electrolysis of aluminaCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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