When chlorine water is added to an aqueous solution of potassium halide in the presence of chloroform,a violet colour is obtained. On adding more chlorine water,the violet colour disappears,and a colourless solution is obtained. This test confirms the presence of which of the following in the aqueous solution?
- AIodide
- BBromide
- CChloride
- DIodide and bromide
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View SolutionWhich of the following anions cannot be tested by $dil. H_2SO_4$?
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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:
Choose the correct matching $:-$
Column-$I$ Column-$II$ $P$. $NaBr + \text{Conc. } H_2SO_4 \rightarrow$ $A$. Colourless gas $Q$. $Na_2S + \text{dil. } HCl \rightarrow$ $B$. Brown colour $R$. $NaNO_2 + \text{dil. } HCl \rightarrow$ $C$. Rotten egg smell $S$. $NaNO_3 + \text{Conc. } H_2SO_4 \rightarrow$ $D$. Paramagnetic
| Column-$I$ | Column-$II$ |
|---|---|
| $P$. $NaBr + \text{Conc. } H_2SO_4 \rightarrow$ | $A$. Colourless gas |
| $Q$. $Na_2S + \text{dil. } HCl \rightarrow$ | $B$. Brown colour |
| $R$. $NaNO_2 + \text{dil. } HCl \rightarrow$ | $C$. Rotten egg smell |
| $S$. $NaNO_3 + \text{Conc. } H_2SO_4 \rightarrow$ | $D$. Paramagnetic |
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