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Question: Answered & Verified by Expert
Calculate the time required for complete decomposition of one mole of water using 2 ampere current. .
ChemistryElectrochemistryJEE Main
Options:
  • A 9650 sec
  • B 96500 sec
  • C 1.93 ×  10 5  sec
  • D 38600 sec
Solution:
1538 Upvotes Verified Answer
The correct answer is: 96500 sec
2H2O→2H2+O2
One mole of H 2 O need 2 moles of e − s for electrolysis.
So, Q = I × t
⇒t =  Q I
= 2×96500 2
∴t=96500 sec

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