19 g of molten S n C l 2 is electrolysed for sometime using inert electrodes. 0.119 g of Sn is deposited at the cathode. No substance is lost during the electrolysis. The ratio of the weights of S n C l 2 : S n C l 4 after electrolysis [Atomic weight of Sn = 119]

Question

19 g of molten S n C l 2 is electrolysed for sometime using inert electrodes. 0.119 g of Sn is deposited at the cathode. No substance is lost during the electrolysis. The ratio of the weights of S n C l 2 : S n C l 4 after electrolysis [Atomic weight of Sn = 119], 71.34 : 1, 31.34 : 1, 7.134 : 1, None of these

MARKS App · Accepted Answer

2SnCl 2 → SnCl 4 + Sn 2 × 190 ≡ 261 ≡ 119 0.38 ≡ 0.261 ≡ 0.119 When 0.119 g Sn deposited then (i) SnCl 2 Consumed = 0.38 g SnCl 2 Left = 19 − 0.38 =18 .62 g (ii) SnCl 2 Formed = 0.261 W SnCl 2 W SnCl 2 = 18.62 0.261 = 71.34 : 1 .

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