A : Complete hydrolysis of one mole of peroxydi-sulphuric acid gives one omle of `H_2O_2` and 2 mole `H_2SO_4`.
R : Peroxydisulphuric acid has zero peroxy lingage.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
B. If both Assertion & Reason are true but the reason is not the correct explanantion of the assertion, then mark (2)
C. If assertion is true statements but Reason is false, then mark (3)
D. If both Assertion and Reason are false statements, then mark (4)

Answer

To solve the question, we need to analyze both the assertion (A) and the reason (R) provided.

### Step 1: Analyze the Assertion (A)
The assertion states that the complete hydrolysis of one mole of peroxydisulphuric acid gives one mole of hydrogen peroxide (H₂O₂) and two moles of sulfuric acid (H₂SO₄).

- **Chemical Reaction**: The chemical formula for peroxydisulphuric acid is H₂S₂O₈. Upon hydrolysis, it can be represented as:

\[ H_2S_2O_8 + H_2O \rightarrow H_2O_2 + 2 H_2SO_4 \]

- This reaction shows that one mole of peroxydisulphuric acid produces one mole of hydrogen peroxide and two moles of sulfuric acid, confirming the assertion is **true**.

### Step 2: Analyze the Reason (R)
The reason states that peroxydisulphuric acid has zero peroxy linkage.

- **Understanding Peroxy Linkage**: A peroxy linkage refers to the -O-O- bond found in peroxides. In the structure of peroxydisulphuric acid (H₂S₂O₈), there is indeed a -O-O- bond present.

- **Structure of Peroxydisulphuric Acid**: The structure can be drawn as follows:

\[ H_2O_2 \text{ (peroxide)} + 2 H_2SO_4 \text{ (sulfuric acid)} \]

- Since there is one peroxy linkage in the structure of peroxydisulphuric acid, the reason is **false**.

### Conclusion
- The assertion (A) is true.
- The reason (R) is false.

Thus, the correct answer is that the assertion is true, but the reason is false.

### Final Answer
Assertion (A) is true, and Reason (R) is false.

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