JEE Mains · Chemistry · STD 11 - 7. Redox reactions
The reaction of sulphur in alkaline medium is the below \(S _{8( s )}+ a OH ^{-}_{( aq )} \rightarrow b S ^{2-}_{( aq )}+ c S _{2} O _{3}{ }^{2-}{ }_{( aq )}+ d H _{2} O _{(\ell)}\) The values of \('a'\) is ............ (Integer answer)
- A \(29\)
- B \(17\)
- C \(11\)
- D \(22\)
Answer & Solution
Correct Answer
(C) \(11\)
Step-by-step Solution
Detailed explanation
\(16 e ^{\ominus}+ S _{8} \longrightarrow 8 S ^{2-}\) \(\frac{12 H _{2} O + S _{8} \longrightarrow 4 S _{2} O _{3}^{2-}+24 H ^{+}+16 e ^{\circ}}{2 S _{8}+12 H _{2} O \longrightarrow 8 S ^{2-}+4 S _{2} O _{3}^{2-}+24 H }\) for balancing in basic medium add equal number of…
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