Question:
Which of the following oxyacid of sulfur contains S=S linkage?
Which of the following oxyacid of sulfur contains S=S linkage?
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When looking for S=S linkages, check for compounds with sulfur atoms directly bonded to each other, as in H\(_2\)S\(_2\)O\(_2\).
Updated On: Jan 30, 2026
- H\(_2\)S\(_2\)O\(_4\)
- H\(_2\)SO\(_3\)
- H\(_2\)S\(_2\)O\(_5\)
- H\(_2\)S\(_2\)O\(_2\)
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The Correct Option is D
Solution and Explanation
Step 1: Identifying S=S Linkage.
The oxyacid that contains an S=S linkage is H\(_2\)S\(_2\)O\(_2\) (D). It contains two sulfur atoms connected by a sulfur-sulfur bond, which is characteristic of this compound. The other compounds listed do not have this linkage.
Step 2: Analyzing the options.
(A) H\(_2\)S\(_2\)O\(_4\): Incorrect. This compound contains sulfur-oxygen bonds, not a sulfur-sulfur linkage.
(B) H\(_2\)SO\(_3\): Incorrect. This compound does not have an S=S linkage; it has sulfur-oxygen bonds.
(C) H\(_2\)S\(_2\)O\(_5\): Incorrect. This is similar to (A), where sulfur atoms are bonded to oxygen, not to each other.
(D) H\(_2\)S\(_2\)O\(_2\): Correct. This compound has an S=S bond, which is unique to this acid.
Step 3: Conclusion.
The correct answer is (D) H\(_2\)S\(_2\)O\(_2\) since it contains an S=S linkage.
The oxyacid that contains an S=S linkage is H\(_2\)S\(_2\)O\(_2\) (D). It contains two sulfur atoms connected by a sulfur-sulfur bond, which is characteristic of this compound. The other compounds listed do not have this linkage.
Step 2: Analyzing the options.
(A) H\(_2\)S\(_2\)O\(_4\): Incorrect. This compound contains sulfur-oxygen bonds, not a sulfur-sulfur linkage.
(B) H\(_2\)SO\(_3\): Incorrect. This compound does not have an S=S linkage; it has sulfur-oxygen bonds.
(C) H\(_2\)S\(_2\)O\(_5\): Incorrect. This is similar to (A), where sulfur atoms are bonded to oxygen, not to each other.
(D) H\(_2\)S\(_2\)O\(_2\): Correct. This compound has an S=S bond, which is unique to this acid.
Step 3: Conclusion.
The correct answer is (D) H\(_2\)S\(_2\)O\(_2\) since it contains an S=S linkage.
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