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Statement-1:White crystalline precipitat...

Statement-1:White crystalline precipitate of silver sulphite dissolves if sulphite ions are added in excess.
Statement-2:Sulphite ions decolourise the pink colour of acidified `KMnO_4`

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1

B

Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1

C

Statement-1 is True, Statement-2 is False.

D

Statement-1 is False, Statement-2 is True.

Text Solution

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The correct Answer is:
To analyze the statements provided in the question, we can break down the solution step by step. ### Step 1: Analyze Statement 1 **Statement 1:** White crystalline precipitate of silver sulphite dissolves if sulphite ions are added in excess. - The compound in question is silver sulphite, which has the formula Ag2SO3. - When excess sulphite ions (SO3^2-) are added to the precipitate, a complex ion is formed. - The reaction can be represented as: \[ \text{Ag}_2\text{SO}_3 (s) + \text{SO}_3^{2-} (aq) \rightarrow 2 \text{Ag}^+ (aq) + \text{SO}_3^{2-} (aq) \] - This indicates that the silver ions (Ag^+) are released into the solution, making the complex soluble. - Therefore, **Statement 1 is true.** ### Step 2: Analyze Statement 2 **Statement 2:** Sulphite ions decolourise the pink colour of acidified KMnO4. - KMnO4 (potassium permanganate) is a strong oxidizing agent and is purple in color in acidic solutions. - When sulphite ions (SO3^2-) are added to acidified KMnO4, a redox reaction occurs. - The reaction can be represented as: \[ \text{MnO}_4^- + 5 \text{SO}_3^{2-} + 8 \text{H}^+ \rightarrow \text{Mn}^{2+} + 5 \text{SO}_4^{2-} + 4 \text{H}_2\text{O} \] - In this reaction, the purple color of KMnO4 is reduced to colorless Mn^2+ ions, thus decolourising the solution. - Therefore, **Statement 2 is also true.** ### Step 3: Determine the Relationship Between the Statements - While both statements are true, they are not interrelated. Statement 1 discusses the solubility of silver sulphite in the presence of excess sulphite ions, while Statement 2 discusses the redox reaction involving KMnO4 and sulphite ions. - Thus, we conclude that **Statement 1 is true, Statement 2 is true, but Statement 2 is not the correct explanation of Statement 1.** ### Final Conclusion - **Statement 1:** True - **Statement 2:** True - **Relationship:** Statement 2 is not the correct explanation of Statement 1. ---

To analyze the statements provided in the question, we can break down the solution step by step. ### Step 1: Analyze Statement 1 **Statement 1:** White crystalline precipitate of silver sulphite dissolves if sulphite ions are added in excess. - The compound in question is silver sulphite, which has the formula Ag2SO3. - When excess sulphite ions (SO3^2-) are added to the precipitate, a complex ion is formed. - The reaction can be represented as: ...
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