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Chemistry 1 Marks Question

Electrochemistry · Rajasthan Board (RBSE) STD 12 Science (Rajasthan - English Medium). 2 questions.

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Question 11 Mark
Write down cell reaction of $Ni-Cd$ cell
Answer
$\ce{\rightarrow Cd(s) + 2Ni(OH)_3(s) \rightarrow CdO (s) + 2Ni(OH )_2(s) + H_2O(l)}$
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Question 21 Mark
What is coulometer?
Answer
→ There were no constant current sources available during Faraday's times. The general method to put a coulometer (a standard electrolytic cell) for determining the quantity of electricity passed from the amount of metal (generally silver or copper) deposited or consumed. However, coulometers are now obsolete. (No longer use)
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