Which of the following statement is incorrect?
Mass of any substance deposited or liberated during electrolysis is proportional to the charge passed through the electrolyte
Amounts of different substances liberated by same quantity of electricity are proportional to their chemical equivalent weights
Equivalents of a substance are obtained by dividing its atomic mass by n-factor
Coulometer is an instrument which determine the quantity of electricity passed from the amount of metal deposited or consumed
Equivalent=Atomic massEquivalent weight