Scrap tin plate can be recycled by dissolving the tin in NaOH solution, followed by electrolysis. If true enter 1 else 0.

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Solution

$S n + 2 N a O H \to N a_{2} S n O_{2} + H_{2}$ $N a_{2} S n O_{2} e l e c t r o l y s i s \to S n$ (at cathode).

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S n O_{2}

can be precipitated as

S n (O H)_{4}

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S n

dissolve in hot

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S n + 2 N a O H + H_{2} O \to N a_{2} S n O_{3} + H_{2}

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Q. Tin shields falls to powder in severe winter due to oxidaiton of tin.
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Q. The electrolysis of molten NaOH liberates O

_{2}

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NaOH is prepared industrially by electrolysis of brine (NaCl). $2 N a C l (a q) + 2 H_{2} O (l) \to C l_{2} (g) + 2 N a O H (a q) + H_{2} (g)$ . The name of this process is Soda-lime process. If true enter 1, else enter 0.

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Scrap tin plate can be recycled by dissolving the tin in NaOH solution, followed by electrolysis. If true enter 1 else 0.

Sn+2NaOH→Na2SnO2+H2 Na2SnO2electrolysis→Sn (at cathode).

$S n + 2 N a O H \to N a_{2} S n O_{2} + H_{2}$ $N a_{2} S n O_{2} e l e c t r o l y s i s \to S n$ (at cathode).