Which of the following reactions is a redox r | vedclass

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(D) redox reaction is one in which both oxidation and reduction occur simultaneously,involving a change in oxidation states of the elements.In option

Vedclass · Accepted Answer

$H_2S + 3H_2SO_4 	o 4SO_2 + 4H_2O$

Vedclass · Answer

(D) redox reaction is one in which both oxidation and reduction occur simultaneously,involving a change in oxidation states of the elements.In option $D$,the reaction is $H_2S + 3H_2SO_4 	o 4SO_2 + 4H_2O$.Here,the oxidation state of $S$ in $H_2S$ changes from $-2$ to $+4$ in $SO_2$ (oxidation).The oxidation state of $S$ in $H_2SO_4$ changes from $+6$ to $+4$ in $SO_2$ (reduction).Since both oxidation and reduction occur,this is a redox reaction.Options $A$,$B$,and $C$ are acid-base or precipitation reactions where no change in oxidation state occurs.

Which of the following reactions is a redox reaction?

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