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What is the role of graphite rod in the electrometallurgy of a
Chemistry Part-I
Chemistry Part-I

Class 12

NCERT

Publisher:
NCERT
Subject:
Chemistry
1

Chapter 1: The Solid State

31 questions

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2

Chapter 2: Solutions

54 questions

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3

Chapter 3: Electrochemistry

28 questions

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4

Chapter 4: Chemical Kinetics

40 questions

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5

Chapter 5: Surface Chemistry

27 questions

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6

Chapter 6: General Principles and Processes of Isolation of Elements

30 questions

Q1
Name the processes from which chlorine is obtained as a by-product. What will happen if an aqueous solution of is subjected to electrolysis?
Q2
What is the role of graphite rod in the electrometallurgy of aluminium?
Q3
Outline the principles of refining of metals by the following methods:
(i) Zone refining
(ii) Electrolytic refining
(iii) Vapour phase refining
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7

Chapter 7: The p-Block Elements

62 questions

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8

Chapter 8: The d-and f-Block Elements

48 questions

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9

Chapter 9: Coordination Compounds

38 questions

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Question
Easy
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Solving time: 1 mins

What is the role of graphite rod in the electrometallurgy of aluminium?

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Chemistry Part-I (NCERT)

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During electrometallurgy of aluminium, graphite rod reduces alumina to aluminium.

In the electrometallurgy of aluminium, oxygen gas is evolved at anode. reacts with graphite or carbon (graphite electrodes) to form carbon monoxide and carbon dioxide. In case if some other metal electrodes is used as anode, then oxygen will react with aluminium formed during the process to form aluminium oxide which will pass into the reaction mixture resulting into wastage of Al. Since graphite is cheaper than aluminium, its wastage or can be tolerated.
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Question Text
What is the role of graphite rod in the electrometallurgy of aluminium?
Updated OnMar 13, 2023
TopicGeneral Principles and Processes of Isolation of Elements
SubjectChemistry
ClassClass 12
Answer TypeText solution:1 Video solution: 1
Upvotes130
Avg. Video Duration2 min