When $SO_2$ gas is passed through an acidified solution of $K_2Cr_2O_7$,the solution turns........
- AThe solution turns blue.
- BThe solution becomes colourless.
- CIt gets reduced.
- DThe solution turns green.
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The colour of an iodine solution is discharged by shaking it with an aqueous solution of:
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$2AgNO_3 + 2NaOH \longrightarrow Ag_2O \downarrow + 2NaNO_3 + H_2O$
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View SolutionMatch List-$I$ with the List-$II$.
List-$I$ (Reaction) List-$II$ (Type of redox reaction) $A$. $N_{2(g)} + O_{2(g)} \rightarrow 2 NO_{(g)}$ $I$. Decomposition $B$. $2 Pb(NO_3)_{2(s)} \rightarrow 2 PbO_{(s)} + 4 NO_{2(g)} + O_{2(g)}$ $II$. Displacement $C$. $2 Na_{(s)} + 2 H_2 O_{(l)} \rightarrow 2 NaOH_{(aq)} + H_{2(g)}$ $III$. Disproportionation $D$. $2 NO_{2(g)} + 2 OH^-_{(aq)} \rightarrow NO^-_{2(aq)} + NO^-_{3(aq)} + H_2 O_{(l)}$ $IV$. Combination
Choose the correct answer from the options given below:
| List-$I$ (Reaction) | List-$II$ (Type of redox reaction) |
| $A$. $N_{2(g)} + O_{2(g)} \rightarrow 2 NO_{(g)}$ | $I$. Decomposition |
| $B$. $2 Pb(NO_3)_{2(s)} \rightarrow 2 PbO_{(s)} + 4 NO_{2(g)} + O_{2(g)}$ | $II$. Displacement |
| $C$. $2 Na_{(s)} + 2 H_2 O_{(l)} \rightarrow 2 NaOH_{(aq)} + H_{2(g)}$ | $III$. Disproportionation |
| $D$. $2 NO_{2(g)} + 2 OH^-_{(aq)} \rightarrow NO^-_{2(aq)} + NO^-_{3(aq)} + H_2 O_{(l)}$ | $IV$. Combination |
Choose the correct answer from the options given below:
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