In electrolysis the mass deposited on an electrode is directly proportional to:

Options

A. Current
B. Square of current
C. Concentration of solution
D. inverse of current

Answer

A

Explanation

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 prop q`
If a current I passes for a time t, then as we know,
q=it
Hence, `m prop it `
or `m prop i`
Thus, mass deposited at an electrode is directly proportional to current