1.

1 mole of electrons is passed through three electrolytic cells in series , first containing silver ions , the second zinc ions and third ferric ions , assming that the only cathodic reaction in each cell reduces the ions to the metal , the number of moles of each metal deposited will be :

Answer»

Ag(0.3 mol.),Zn(1 mol.),Fe(1mol.)
Ag(0.5mol.),Zn(0.33 mol.),Fe(1mol.)
Ag(1mol.),Zn(0.5mol.),Fe(0.35mol.)
Ag(0.5mol.),Zn(1mol.),Fe(0.33 mol.)

SOLUTION :Ag is monovalent , Zn divalent and Fe is trivalent.


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