Anion which can react with dil. H_2SO_4 is | vedclass

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(D) Dilute $H_2SO_4$ is a moderately strong acid that can displace weaker acids from their salts.$CO_3^{2-}$ reacts with $dil. H_2SO_4$ to evolve $CO_

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(D) Dilute $H_2SO_4$ is a moderately strong acid that can displace weaker acids from their salts.$CO_3^{2-}$ reacts with $dil. H_2SO_4$ to evolve $CO_2$ gas: $CO_3^{2-} + 2H^+ \rightarrow H_2O + CO_2 \uparrow$.$SO_3^{2-}$ reacts with $dil. H_2SO_4$ to evolve $SO_2$ gas: $SO_3^{2-} + 2H^+ \rightarrow H_2O + SO_2 \uparrow$.$NO_2^{-}$ reacts with $dil. H_2SO_4$ to evolve $NO$ and $NO_2$ gases (brown fumes): $2NO_2^- + 2H^+ \rightarrow H_2O + NO + NO_2 \uparrow$.Since all the given anions react with dilute $H_2SO_4$,the correct option is $D$.

List-$I$ (Anion)	List-$II$ (Gas evolved on reaction with dil. $H_2SO_4$)
$A. CO_3^{2-}$	$I$. Colourless gas which turns lead acetate paper black
$B. S^{2-}$	$II$. Colourless gas which turns acidified potassium dichromate solution green
$C. SO_3^{2-}$	$III$. Brown fumes which turn acidified $KI$ solution containing starch blue
$D. NO_2^{-}$	$IV$. Colourless gas evolved with brisk effervescence,which turns lime water milky

Anion which can react with $dil. H_2SO_4$ is

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