In which of the following reactions is SO_2 g | vedclass

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(B) The reaction of $S_8$ with concentrated $H_2SO_4$ is: $\frac{1}{8}S_8 + 2H_2SO_4 \xrightarrow{	ext{warm}} 3SO_2 + 2H_2O$. Here $SO_2$ is produced

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$S_8 + 	ext{conc. } HNO_3 \xrightarrow{	ext{warm}}$

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(B) The reaction of $S_8$ with concentrated $H_2SO_4$ is: $\frac{1}{8}S_8 + 2H_2SO_4 \xrightarrow{	ext{warm}} 3SO_2 + 2H_2O$. Here $SO_2$ is produced.The reaction of $S_8$ with concentrated $HNO_3$ is: $\frac{1}{8}S_8 + 6HNO_3 \xrightarrow{	ext{warm}} H_2SO_4 + 6NO_2 + 2H_2O$. Here $H_2SO_4$ and $NO_2$ are produced,not $SO_2$.The roasting of $PbS$ is: $2PbS + 3O_2 \xrightarrow{\Delta} 2PbO + 2SO_2$. Here $SO_2$ is produced.The roasting of $FeS_2$ is: $4FeS_2 + 11O_2 \xrightarrow{\Delta} 2Fe_2O_3 + 8SO_2$. Here $SO_2$ is produced.Thus,$SO_2$ is not produced in option $B$.

In which of the following reactions is $SO_2$ gas not produced?

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