KVPY SX SB Exam 05-Nov-2017 Question Paper

A constant current (0.5 amp) is passed for 1 hour through (i) aqueous AgNO${}_3$, (ii) aqueous CuSO${}_4$ and (iii) molten AlF${}_3$, separately. The ratio of the mass of the metals deposited on the cathode is
[${\mathit{M}}_{\mathrm{Ag}},{\mathit{M}}_{\mathrm{Cu}},{\mathit{M}}_{\mathrm{Al}}$ are molar masses of the respective metals]