wiz-icon
MyQuestionIcon
MyQuestionIcon
20
You visited us 20 times! Enjoying our articles? Unlock Full Access!
Question

Assertion :In the extraction of aluminium by electrolysis it is necessary to renew the anode periodically. Reason: Oxygen gas is formed and at high temperature of the electrolysis cell it burns and oxidises away the carbon electrodes to form toxic carbon monoxide or carbon dioxide

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Assertion is correct but Reason is incorrect
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Both Assertion and Reason are incorrect
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The anode is renewed periodically as they get oxidized. (At the positive anode, oxygen gas is formed and at high temperature of the electrolysis cell it burns and oxidises away the carbon electrodes to form toxic carbon monoxide or carbon dioxide. So the carbon graphite electrode is regularly replaced )

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Chemical Reactions and Equations II
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon