Assertion : 1 mole of `H_(2)SO_(4)` contains same mass of oxygen and sulphur.
Reason : 1 mole of `H_(2)SO_(4)` represents 49 g mass.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Explanation

To solve the question, we need to analyze both the assertion and the reason provided.

### Step 1: Calculate the molar mass of H₂SO₄
To determine the assertion, we first need to calculate the molar mass of sulfuric acid (H₂SO₄).

- Hydrogen (H): There are 2 atoms of hydrogen, and the atomic mass of hydrogen is approximately 1 g/mol.
\[ \text{Mass of H} = 2 \times 1 = 2 \text{ g/mol} \]

- Sulfur (S): There is 1 atom of sulfur, and the atomic mass of sulfur is approximately 32 g/mol.
\[ \text{Mass of S} = 1 \times 32 = 32 \text{ g/mol} \]

- Oxygen (O): There are 4 atoms of oxygen, and the atomic mass of oxygen is approximately 16 g/mol.
\[ \text{Mass of O} = 4 \times 16 = 64 \text{ g/mol} \]

Now, we can add these masses together to find the total molar mass of H₂SO₄:
\[ \text{Molar mass of H₂SO₄} = 2 + 32 + 64 = 98 \text{ g/mol} \]

### Step 2: Analyze the assertion
The assertion states that 1 mole of H₂SO₄ contains the same mass of oxygen and sulfur.

- Mass of oxygen in 1 mole of H₂SO₄ = 64 g
- Mass of sulfur in 1 mole of H₂SO₄ = 32 g

Since 64 g (mass of oxygen) is not equal to 32 g (mass of sulfur), the assertion is **incorrect**.

### Step 3: Analyze the reason
The reason states that 1 mole of H₂SO₄ represents a mass of 49 g.

From our calculation, we found that the molar mass of H₂SO₄ is 98 g, not 49 g. Therefore, the reason is also **incorrect**.

### Conclusion
Both the assertion and the reason are incorrect.

Thus, the correct answer to the question is that both the assertion and the reason are wrong.

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