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A current of 2A is passed for 5 hours through a molten tin salt to deposit 22.2gm tin. What is the oxidation sate of tin in salt? (At.wt of $S n = 118.69 g m$ )______(only magnitude) (Round off to nearest integer)

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answer is 2.

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Detailed Solution

Equivalents of tin $= \frac{i . t}{96500}$ (or)
$\frac{22.2}{e q . w t} = \frac{2 \times 5 \times 60 \times 60}{96500}$
Eq.wt=59.5
Valency of tin= $\frac{A t o m i c w e i g h t}{E q u i v a l e n t w e i g h t} = \frac{118.69}{59.5} ≃ 2$

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