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Bond Pairs and Lone Pairs

1 mole of N...

Question

$1$ mole of $N a_{2} S_{2} O_{3}$ looses $10$ moles of $e^{-}$ . Determine final Oxidation number of S.

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Solution

$N a_{2} S_{2} O_{3}$ in 2 x 1+2x 2+3x(-2)= 0
2 S makes =4
loses 10 electron so 6 e is from O and 4 is from S
S on is +4

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