JEE Main 202228 JuneEvening Shift

Exam: JEE Main
Year: 2022
Date: 28 June
Shift: Evening Shift
Subject: Chemistry
Chapter: p Block Elements (Group 15, 16, 17 & 18)

JEE Main 2022 · 28 June · Evening Shift · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Which of the following oxoacids of sulphur contains "S" in two...

Which of the following oxoacids of sulphur contains "S" in two different oxidation states?

Options

A ${H}_{2}{S}_{2}{O}_{3}$
B ${H}_{2}{S}_{2}{O}_{6}$
C ${H}_{2}{S}_{2}{O}_{7}$
D ${H}_{2}{S}_{2}{O}_{8}$

Correct answer

A. ${H}_{2}{S}_{2}{O}_{3}$

Step-by-step solution

Which of the following oxoacids of sulphur contains "S" in two different oxidation states?

In this molecule both sulphur has different oxidation number one has -2 oxidation number and other has +6 oxidation number. Average oxidation number of sulphur will be +2.

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