Redox Reactions Question 10
Question 10 - 2024 (31 Jan Shift 2)
Given below are two statements :
Statement I: $\mathrm{S}_{8}$ solid undergoes
disproportionation reaction under alkaline
conditions to form $\mathrm{S}^{2-}$ and $\mathrm{S}{2} \mathrm{O}{3}{ }^{2-}$
Statement II: $\mathrm{ClO}_{4}^{-}$can undergo
disproportionation reaction under acidic condition.
In the light of the above statements, choose the most appropriate answer from the options given below :
(1) Statement I is correct but statement II is incorrect.
(2) Statement I is incorrect but statement II is correct
(3) Both statement I and statement II are incorrect
(4) Both statement I and statement II are correct
Show Answer
Answer (1)
Solution
$\mathrm{S}{1}: \mathrm{S}{8}+12 \mathrm{OH}^{\ominus} \rightarrow 4 \mathrm{~S}^{2-}+2 \mathrm{~S}{2} \mathrm{O}{3}^{2-}+6 \mathrm{H}_{2} \mathrm{O}$
$\mathrm{S}{2}: \mathrm{ClO}{4}^{\ominus}$ cannot undergo disproportionation reaction as chlorine is present in it’s highest oxidation state.
