Download MARKS App - Trusted by 15,00,000+ IIT JEE & NEET aspirants! Download Now
Search any question & find its solution
Question: Answered & Verified by Expert
$2 \mathrm{Cu}_2 \mathrm{O}(s)+\mathrm{Cu}_2 \mathrm{~S}(s) \longrightarrow 6 \mathrm{Cu}(s)+\mathrm{SO}_2(g)$
the oxidant and reductant respectively in the above reaction are
ChemistryRedox ReactionsAP EAMCETAP EAMCET 2018 (24 Apr Shift 1)
Options:
  • A oxide of $\mathrm{Cu}_2 \mathrm{O}$ and sulphide of $\mathrm{Cu}_2 \mathrm{~S}$
  • B sulphide of $\mathrm{Cu}_2 \mathrm{~S}$ and oxide of $\mathrm{Cu}_2 \mathrm{O}$
  • C $\mathrm{Cu}(\mathrm{I})$ of $\mathrm{Cu}_2 \mathrm{O}, \mathrm{Cu}_2 \mathrm{~S}$ and sulphide of $\mathrm{Cu}_2 \mathrm{~S}$
  • D $\mathrm{Cu}(\mathrm{I})$ of $\mathrm{Cu}_2 \mathrm{~S}, \mathrm{Cu}(\mathrm{I})$ of $\mathrm{Cu}_2 \mathrm{O}$
Solution:
2963 Upvotes Verified Answer
The correct answer is: $\mathrm{Cu}(\mathrm{I})$ of $\mathrm{Cu}_2 \mathrm{O}, \mathrm{Cu}_2 \mathrm{~S}$ and sulphide of $\mathrm{Cu}_2 \mathrm{~S}$


$\mathrm{Cu}(\mathrm{I})$ of $\mathrm{Cu}_2 \mathrm{O}(s)$ and $\mathrm{Cu}_2 \mathrm{~S}(s)$ undergoes reduction to form $\mathrm{Cu}(s)$ while sulphide of $\mathrm{Cu}_2 \mathrm{~S}$ undergoes oxidation to form $\mathrm{SO}_2(\mathrm{~g})$. Thus, $\mathrm{Cu}(\mathrm{I})$ of $\mathrm{Cu}_2 \mathrm{O} \cdot \mathrm{Cu}_2 \mathrm{~S}$ acts as an oxidising agent (oxidant) and sulphide of $\mathrm{Cu}_2$ Sacts as a reducing agent (reductant).

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.