Question:
Which of the following does not exist?
I. HO$_2$S—S—SO$_3$H II. HO—SO$_3$—OH
III. HS—S—SH IV. HS—SO$_3$—OH
Which of the following does not exist?
I. HO$_2$S—S—SO$_3$H II. HO—SO$_3$—OH
III. HS—S—SH IV. HS—SO$_3$—OH
I. HO$_2$S—S—SO$_3$H II. HO—SO$_3$—OH
III. HS—S—SH IV. HS—SO$_3$—OH
Show Hint
Check valency and oxidation state to verify existence of oxyacids.
Updated On: Apr 16, 2026
- Only II
- Only III
- II and IV
- I, III and IV
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Concept:
Stability of sulphur oxyacids depends on bonding and oxidation states.
Step 1: Check structure II.
HO–SO$_3$–OH is not a valid stable structure.
Step 2: Check structure IV.
HS–SO$_3$–OH is unstable due to improper bonding.
Step 3: Conclusion.
Both II and IV do not exist.
Step 1: Check structure II.
HO–SO$_3$–OH is not a valid stable structure.
Step 2: Check structure IV.
HS–SO$_3$–OH is unstable due to improper bonding.
Step 3: Conclusion.
Both II and IV do not exist.
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