AP EAPCET 07-Jul-2022 Shift 2 Paper

We know that, q=it, where q is the charge in coulomb, i is the current in amperes and t is the time in seconds.
q=it
10h‌=q=10.7A×10h×60‌min‌h−1×60 smin−1
‌=3,85,200C
Since, 96500C=1 mole of electrons
∴3,85200C=4 moles of electrons
Since, 4 moles of electrons are needed to deposit 1 mole of metal, therefore the charge on metal ion is +4. That is, its valency is 4 .
Equivalent weight =

Atomic‌w‌e‌i‌g‌h‌t

Valency

=

M

4