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What is the oxidation number of As in H2AsO4 briefly explain how does it come??✨
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4 answers · Chemistry
Best Answer
So usually oxidation number for Oxygen is -2 and hydrogen is +1.
Youre given H2AsO4-2
for Oxygen
-2(4) = -8
for hydrogen
1(2) = +2
add them up, you get
-6
and you know that overall charge is -2
so,
-6 + X(oxidation # for As) = -2
X = +4
Best Answer
So usually oxidation number for Oxygen is -2 and hydrogen is +1.
Youre given H2AsO4-2
for Oxygen
-2(4) = -8
for hydrogen
1(2) = +2
add them up, you get
-6
and you know that overall charge is -2
so,
-6 + X(oxidation # for As) = -2
X = +4
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