`H_(2)underline(S_(2))O_(7)+H_(2)O to H_(2)SO_(4)`

Options

A. If product is oxy acid with -ic suffix.
B. If product is oxy acid with -ous suffix
C. If product are two oxy acids one with -ic suffix and otherone with -ous suffix.
D. If product is not oxy acid, neither with -ic suffix nor with -ous suffix

Answer

To solve the given question, we need to analyze the reaction and determine the nature of the product formed. The reaction provided is:

\[ \text{H}_2\text{S}_2\text{O}_7 + \text{H}_2\text{O} \rightarrow \text{H}_2\text{SO}_4 \]

### Step-by-Step Solution:

**Step 1: Identify the reactants and products.**
- The reactants are H₂S₂O₇ (disulfuric acid or oleum) and H₂O (water).
- The product formed is H₂SO₄ (sulfuric acid).

**Hint:** Look for the chemical formulas and identify the compounds involved.

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**Step 2: Determine the type of product formed.**
- H₂SO₄ is known to be an oxyacid because it contains oxygen, hydrogen, and a central atom (sulfur).
- The presence of oxygen and hydrogen bonded to sulfur confirms that it is an oxyacid.

**Hint:** Recall the definition of oxyacids and check if the product contains oxygen, hydrogen, and a central atom.

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**Step 3: Check the oxidation state of sulfur in the product.**
- In H₂SO₄, the oxidation state of sulfur (S) can be calculated:
- H₂SO₄ has 2 hydrogen atoms (H) contributing +1 each, and 4 oxygen atoms (O) contributing -2 each.
- The overall charge is neutral (0), so:

\[ 2(+1) + x + 4(-2) = 0 \implies 2 + x - 8 = 0 \implies x = +6 \]

- The oxidation state of sulfur in H₂SO₄ is +6.

**Hint:** Use the oxidation state rules to find the oxidation number of sulfur in the compound.

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**Step 4: Determine the suffix of the oxyacid.**
- Since the oxidation state of sulfur is +6, the naming convention for oxyacids states that when the central atom has a high oxidation state, the suffix “-ic” is used.
- Therefore, H₂SO₄ is named sulfuric acid.

**Hint:** Remember the naming conventions for oxyacids based on the oxidation states of the central atom.

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**Step 5: Eliminate incorrect options.**
- Since H₂SO₄ is the only product formed and it is an oxyacid with the suffix “-ic,” we can eliminate options that suggest it is not an oxyacid or that multiple products are formed.
- The correct option is that it is an oxyacid with the suffix “-ic.”

**Hint:** Review the options provided and eliminate those that do not match your findings.

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### Final Conclusion:
The product formed in the reaction is an oxyacid with the suffix “-ic,” specifically sulfuric acid (H₂SO₄). Thus, the answer is option A.