The compound (s) having peroxide linkage is(are) :

The compound (s) having peroxide linkage is(are) :
  1. $\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_7$
  2. $\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_8$
  3. $\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_5$
  4. $\mathrm{H}_2 \mathrm{SO}_5$

Asked in: JEE Advanced 2024 (Paper 2)

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