(A) The salt $(A)$ reacts with $BaCl_{2}$ to form a white precipitate. Sulfite salts $(SO_{3}^{2-})$ form $BaSO_{3}$ (white precipitate) with $BaCl_{2

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(A) The salt $(A)$ reacts with $BaCl_{2}$ to form a white precipitate. Sulfite salts $(SO_{3}^{2-})$ form $BaSO_{3}$ (white precipitate) with $BaCl_{2}$.$BaSO_{3(s)} + 2HCl_{(aq)} \longrightarrow BaCl_{2(aq)} + H_{2}O_{(l)} + SO_{2(g)}$.The gas $(B)$ is $SO_{2}$,which is a reducing agent and decolourises acidified $KMnO_{4}$ solution by reducing $Mn^{7+}$ to $Mn^{2+}$.Therefore,$(A)$ is $Na_{2}SO_{3}$ and $(B)$ is $SO_{2}$.

Class 12 Chemistry Principles Related to Practical Chemistry Wet Test for Acid Radical

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Aqueous solution of a salt $(A)$ forms a dense white precipitate with $BaCl_{2}$ solution. The precipitate dissolves in dilute $HCl$ to produce a gas $(B)$ which decolourises acidified $KMnO_{4}$ solution. $A$ and $B$ respectively are

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A
$Na_{2}SO_{3}, SO_{2}$
B
$Na_{2}SO_{4}, H_{2}S$
C
$Na_{2}SO_{3}, H_{2}S$
D
$Na_{2}SO_{4}, SO_{2}$

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Aqueous solution of a salt $(A)$ forms a dense white precipitate with $BaCl_{2}$ solution. The precipitate dissolves in dilute $HCl$ to produce a gas $(B)$ which decolourises acidified $KMnO_{4}$ solution. $A$ and $B$ respectively are

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Which one of the following anions is not easily removed from aqueous solutions by precipitation?

To a solution of a colourless sodium salt, a solution of lead nitrate was added to form a white precipitate which dissolves in warm water and reprecipitates on cooling. Which of the following acid radicals is present in the salt?

$A$ sodium salt gives a white precipitate with $MgCl_2$ only upon heating. What is the anion of the sodium salt?

$X + H_2SO_4 \to Y$ (a colorless gas with a pungent smell).$Y + K_2Cr_2O_7 + H_2SO_4 \to$ green colored solution.What are $X$ and $Y$?

$A$ mixture when heated with conc. $H_2SO_4$ and $MnO_2$ produces brown fumes due to the presence of:

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$X + H_2SO_4 \to Y$ (a colorless gas with a pungent smell).
$Y + K_2Cr_2O_7 + H_2SO_4 \to$ green colored solution.
What are $X$ and $Y$?