Which of the following solid salt on heating | vedclass

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(B) The reaction of a chloride salt with solid $K_2Cr_2O_7$ and concentrated $H_2SO_4$ is known as the $Chromyl$ $Chloride$ test.$4NaCl_{(s)} + K_2Cr_

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$NaCl$

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(B) The reaction of a chloride salt with solid $K_2Cr_2O_7$ and concentrated $H_2SO_4$ is known as the $Chromyl$ $Chloride$ test.$4NaCl_{(s)} + K_2Cr_2O_{7(s)} + 6H_2SO_4(conc.) 	o 2CrO_2Cl_2(orange-red \ vapours) + 2KHSO_4 + 4NaHSO_4 + 3H_2O$The orange-red vapours of $CrO_2Cl_2$ (chromyl chloride) dissolve in aqueous $NaOH$ to form a yellow solution of sodium chromate:$CrO_2Cl_2 + 4NaOH_{(aq)} 	o Na_2CrO_4(yellow \ solution) + 2NaCl + 2H_2O$Thus,the correct salt is $NaCl$.

List-$I$ Solid salt treated with dil. $H_2SO_4$	List-$II$ Anion detected
$A.$ Effervescence of colourless gas	$I.$ $NO_2^-$
$B.$ Gas with smell of rotten egg	$II.$ $CO_3^{2-}$
$C.$ Yellowish green gas with pungent and suffocating smell	$III.$ $S^{2-}$
$D.$ Brown fumes	$IV.$ $Cl^{-}$

Which of the following solid salt on heating with solid $K_2Cr_2O_7$ and conc. $H_2SO_4$ evolves orange-red vapours that turn an aqueous $NaOH$ solution yellow?

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