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Redox Reactions question

2023 · Q122
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Redox Reactions question

2023 · Q122

NEETChemistryRedox ReactionsMCQ+4 / −1

On balancing the given redox reaction,

aCr2O72−+bSO32−(aq)+cH+(aq)→2aCr3+(aq)+bSO42−(aq)+c2H2O(ℓ)\mathrm{aCr}_{2} \mathrm{O}_{7}^{2-}+\mathrm{bSO}_{3}^{2-}(\mathrm{aq})+\mathrm{cH}^{+}(\mathrm{aq}) \rightarrow 2 \mathrm{aCr}^{3+}(\mathrm{aq})+\mathrm{bSO}_{4}^{2-}(\mathrm{aq})+\frac{\mathrm{c}}{2} \mathrm{H}_{2} \mathrm{O}(\ell)aCr2​O72−​+bSO32−​(aq)+cH+(aq)→2aCr3+(aq)+bSO42−​(aq)+2c​H2​O(ℓ)

the coefficients a,b\mathrm{a}, \mathrm{b}a,b and c\mathrm{c}c are found to be, respectively -

  1. A
    3, 8, 1
  2. B
    1, 8, 3
  3. C
    8, 1, 3
  4. D
    1, 3, 8
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