With respect to the following reaction, which is the correct statement? $2HNO_3(aq) + 3H_2S(aq) rarr 3S(s)+2NO(g) +4H_2O$; a. both sulfur and nitrogen are reduced; b. nitrogen is reduced and sulfur is oxidized; c. oxygen is oxidized; d. this is not redox.

Md Ariful Islam

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Md Ariful Islam

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$2HNO_3 + 3H_2S rarr 3Sdarr +2NOuarr +4H_2O$

Can you write the redox half equations?

Nitrate ion, $N(+V)$, is reduced to nitrous oxide, $N(+II)$.

$HNO_3 + 3H^(+) +3e^(-) rarr NO + 2H_2O$

Try to represent the sulfur oxidation.

This is (I take it) a first year chemistry problem? Surely it's at least A level?

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