On treating a compound with warm dil. $H_{2}SO_{4}$,gas $X$ is evolved which turns $K_{2}Cr_{2}O_{7}$ paper acidified with dil. $H_{2}SO_{4}$ to a green compound $Y$. $X$ and $Y$ respectively are
- A$X = SO_{2}, Y = Cr_{2}O_{3}$
- B$X = SO_{3}, Y = Cr_{2}O_{3}$
- C$X = SO_{2}, Y = Cr_{2}(SO_{4})_{3}$
- D$X = SO_{3}, Y = Cr_{2}(SO_{4})_{3}$
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View SolutionMatch List-$I$ with List-$II$:
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
Choose the correct answer from the options given below:
| 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 |
Choose the correct answer from the options given below:
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