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(a). IF both (A) and (R) are correct and...

(a). IF both (A) and (R) are correct and (R) is the correct explanation of (A).
(b). If both (A) and (R) are correct but (R) is not the correct explanation of (A).
(c). If (A) is correct, but (R) is incorrect.
(d). If (A) is incorrect, but (R) is correct. ltbr. (e) if both (A) and (R) are incorrect.
Q. Assertion (A): `MnO_(4)^(ɵ)+S_(2)O_(3)^(2-)underset(pH=7)toMnO_(2)+HSO_(4)^(ɵ)`
Reason (R): The n factor for `MnO_(4)^(ɵ)` and `S_(2)O_(3)^(2-)` ions respectively are 3 and 8.

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To solve the given assertion-reason question, we will follow these steps: ### Step 1: Analyze the Assertion (A) The assertion states that the reaction occurs as follows: \[ \text{MnO}_4^- + \text{S}_2\text{O}_3^{2-} \xrightarrow{\text{pH}=7} \text{MnO}_2 + \text{HSO}_4^- \] ### Step 2: Determine the n-factor for MnO4⁻ 1. Identify the oxidation states: - In MnO4⁻, manganese (Mn) has an oxidation state of +7. - In MnO2, manganese (Mn) has an oxidation state of +4. 2. Calculate the change in oxidation state: - Change = +7 (in MnO4⁻) - +4 (in MnO2) = 3. 3. Thus, the n-factor for MnO4⁻ is 3. ### Step 3: Determine the n-factor for S2O3²⁻ 1. Identify the oxidation states: - In S2O3²⁻, sulfur (S) has an oxidation state of +2. - In HSO4⁻, sulfur (S) has an oxidation state of +6. 2. Calculate the change in oxidation state: - Change = 2 (for 2 sulfur atoms in S2O3²⁻) × +6 (in HSO4⁻) - 2 (for 2 sulfur atoms in S2O3²⁻) × +2 = 12 - 4 = 8. 3. Thus, the n-factor for S2O3²⁻ is 8. ### Step 4: Analyze the Reason (R) The reason states that the n-factors for MnO4⁻ and S2O3²⁻ are 3 and 8, respectively. We have calculated these values and found them to be correct. ### Step 5: Conclusion Both the assertion (A) and the reason (R) are correct, and the reason (R) correctly explains the assertion (A). ### Final Answer: The correct option is (a): If both (A) and (R) are correct and (R) is the correct explanation of (A). ---
To solve the given assertion-reason question, we will follow these steps: ### Step 1: Analyze the Assertion (A) The assertion states that the reaction occurs as follows: \[ \text{MnO}_4^- + \text{S}_2\text{O}_3^{2-} \xrightarrow{\text{pH}=7} \text{MnO}_2 + \text{HSO}_4^- \] ### Step 2: Determine the n-factor for MnO4⁻ 1. Identify the oxidation states: ...
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