A) current
B) square of current
C) concentration of solution
D) inverse of current
Correct Answer: A
Solution :
| [a] In electrolysis, according to first law of Faraday, the mass of a substance deposited at an electrode is directly proportional to the charge passed through the electrolyte i.e., |
| \[m\propto \,q\] |
| If a current i passes for a time t, then as we know, |
| \[q=\]it |
| Hence, \[m\,\propto \,\,it\] |
| or \[m\,\propto \,\,i\] |
| Thus, mass deposited at an electrode is directly proportional to current. |
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