Question

Give the oxidation state for Se in H2SeO3.

Answer 1

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+4 for Se

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+1 for each H, -2 for each O, +4 for Se

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Answer 2

Explanation:

let the oxidation state of. se be x

H2seO3

(1)×2+(x)+(-2)×3 = 0

2+x -6=0

-4+x= 0

x=4