When hypo solution is added to `KMnO_(4)` solution then

Options

A. `Na_(2)S_(2)O_(3)` is converted to `Na_(2)SO_(4)`
B. `Na_(2)S_(2)O_(3)` is converted to `Na_(2)S_(4)O_(6)`
C. `KMnO_(4)` is converted to `K_(2)MnO_(4)`
D. `KMnO_(4)` is converted to `MnSO_(4)`

Explanation

To solve the question about the reaction between hypo solution (sodium thiosulfate, Na2S2O3) and potassium permanganate (KMnO4), we will follow these steps:

### Step 1: Identify the Reactants
The reactants in this reaction are sodium thiosulfate (Na2S2O3) and potassium permanganate (KMnO4).

**Hint:** Always start by identifying the chemical species involved in the reaction.

### Step 2: Understand the Reaction Conditions
The reaction occurs in a basic medium. This is important because the pH of the solution can affect the products formed during the reaction.

**Hint:** Note the conditions under which the reaction takes place, as they can influence the outcome.

### Step 3: Write the Balanced Chemical Equation
The balanced chemical equation for the reaction between Na2S2O3 and KMnO4 in a basic medium can be written as follows:

\[ 8 \text{KMnO}_4 + 8 \text{Na}_2\text{S}_2\text{O}_3 + 2 \text{KOH} \rightarrow 8 \text{MnO}_2 + 8 \text{Na}_2\text{SO}_4 + 2 \text{K}_2\text{SO}_4 + 2 \text{H}_2\text{O} \]

**Hint:** Balancing the equation is crucial to understanding the stoichiometry of the reaction.

### Step 4: Analyze the Products
From the balanced equation, we can see that sodium thiosulfate (Na2S2O3) is converted into sodium sulfate (Na2SO4). The potassium permanganate (KMnO4) is reduced to manganese dioxide (MnO2).

**Hint:** Identify what each reactant is converted into to determine the correct statements.

### Step 5: Evaluate the Given Options
Now, let's evaluate the options provided in the question:
1. Na2S2O3 is converted into Na2SO4. (Correct)
2. Na2S2O3 is converted into Na2S4O6. (Incorrect)
3. KMnO4 is converted into K2MnO4. (Incorrect)
4. KMnO4 is converted into MnSO4. (Incorrect)

**Hint:** Cross-check the products derived from the balanced equation with the options given.

### Conclusion
The only correct statement is that sodium thiosulfate (Na2S2O3) is converted into sodium sulfate (Na2SO4).

**Final Answer:** The correct option is the first one: Na2S2O3 is converted into Na2SO4.