A current of 20 amperes is passed through a dilute aqueous solution of H₂SO₄ for two days using platinum electrodes. Identify incorrect statement(s) among the following

Charge passed through the solution $=20\times 48\times 60\times 60=3.456\times {10}^6$ coulombs

(1) Cathode reaction: $2{\mathrm{H}}^{+}+2e={\mathrm{H}}_2$

$\text{ Weight of }{\mathrm{H}}_2\text{ liberated at cathode }=\frac{3.456\times {10}^6\times 2}{2\times 965\times {10}^2}=35.81\mathrm{gms}$

(2) Correct electrode reaction at anode:

${\mathrm{H}}_2\mathrm{O}=2{\mathrm{H}}^{+}+\frac{1}{2}{\mathrm{O}}_2+2e$

(3) $\text{ E.C.E. of }{\mathrm{O}}_2=\frac{32}{4\times 96,500}=8.3\times {10}^{-5}\mathrm{gms} {\mathrm{coulomb}}^{-1}$

(4) Number of electrons passing through cell

$=\frac{3.456\times {10}^6\times 6.0\times {10}^{23}}{96,500}=2.15\times {10}^{25}$