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Question: In balancing the half reaction, \(S_{2}O_{3}^{2 -}\)® S(s), the number of electrons that must be add...

In balancing the half reaction, S2O32S_{2}O_{3}^{2 -}® S(s), the number of electrons that must be added is –

A

2 on the right

B

2 on the left

C

3 on the right

D

4 on the left

Answer

4 on the left

Explanation

Solution

S2O32S_{2}O_{3}^{2 -} ® 2S + 3H2O

+ 6H+

+ 4e