The compound(s) having peroxide linkage is(are)
- H2S2O7
- H2S2O8
- H2S2O5
- H2SO5
The Correct Option is B, D
Approach Solution - 1
Structures of Sulfuric Acid Derivatives
1. Structure of \( \text{H}_2\text{S}_2\text{O}_7 \) (Pyrosulfuric Acid):
No peroxide linkage present.
2. Structure of \( \text{H}_2\text{S}_2\text{O}_8 \) (Peroxydisulfuric Acid):
Contains an \( -\text{O-O}- \) (peroxide) linkage.
3. Structure of \( \text{H}_2\text{S}_2\text{O}_5 \) (Pyro Sulfurous Acid):
No peroxide linkage present.
4. Structure of \( \text{H}_2\text{SO}_5 \) (Peroxomonosulfuric Acid):
Contains an \( -\text{O-O}- \) (peroxide) linkage.
Approach Solution -2
To solve the problem, identify which compound(s) contain a peroxide (–O–O–) linkage.
Analysis of compounds:
- H2S2O7 (Disulfuric acid or pyrosulfuric acid):
Contains bridging oxygen atoms but no peroxide (O–O) bond.
No peroxide linkage. - H2S2O8 (Peroxydisulfuric acid):
Contains an –O–O– (peroxide) linkage between the two sulfur atoms.
Has peroxide linkage. - H2S2O5 (Hypodithionous acid):
No peroxide linkage; structure contains S–S bond but no O–O bond.
No peroxide linkage. - H2SO5 (Peroxymonosulfuric acid or Caro’s acid):
Contains a peroxide (O–O) bond attached to sulfur.
Has peroxide linkage.
Final Answer:
Compounds with peroxide linkage are:
\[
\boxed{\text{H}_2\text{S}_2\text{O}_8 \text{ and } \text{H}_2\text{SO}_5}
\]
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