\[[X]+{{H}_{2}}S{{O}_{4}}\xrightarrow{{}}[Y]\] a colourless gas with i – McqOptions

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1.	\[[X]+{{H}_{2}}S{{O}_{4}}\xrightarrow{{}}[Y]\] a colourless gas with irritating smell,\[[Y]+{{K}_{2}}C{{r}_{2}}O+{{H}_{2}}S{{O}_{4}}\xrightarrow{{}}\] green solution.[X] and [Y] is:
A.	\[S{{O}_{3}}^{2-},S{{O}_{2}}\]
B.	\[C{{l}^{-}},HCl\]
C.	\[{{S}^{2-}},{{H}_{2}}S\]
D.	\[C{{O}_{3}}^{2-},C{{O}_{2}}\]
Answer» B. \[C{{l}^{-}},HCl\]

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