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Electrochemistry question

2016 · Q92
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Electrochemistry question

2016 · Q92

NEETChemistryElectrochemistryMCQ+4 / −1
The number of electrons delivered at the cathode during electrolysis by a current of 1 ampere in 60 seconds is (charge on electron = 1.60 ×\times× 10−-−19C)
  1. A
    6 ×\times× 1023
  2. B
    6 ×\times× 1020
  3. C
    3.75 ×\times× 1020
  4. D
    7.48 ×\times× 1023
View written solutionFree

Correct answer: C

Q = I × t

Q = 1 × 60 = 60 C

Now, 1.60 × 10–19 C ≡\equiv≡ 1 electron

∴\therefore∴ 60 C ≡\equiv≡ 601.6×10−19{{60} \over {1.6 \times {{10}^{ - 19}}}}1.6×10−1960​

= 3.75 ×\times× 1020 electrons

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