Complete and balance the following chemical equations: 3 × 1 MnO 4^-+C 2 O 4^2-+H^+ → KMnO 4 [513 K] Heat Cr 2 O 7^2-+H 2 S+H^+ →

(a) 5 C 2O 4^2- + 2 MnO 4^- + 16 H^+ → 2 Mn^2+ + 8 H 2O + 10 CO 2 (b) 2 KMnO 4 → K 2MnO 4 + MnO 2 + O 2 (c) Cr 2O 7^2- + 8 H^+ + 3 H 2S → 2 Cr^3+ + 3 S + 7 H 2O

CBSE 2025 · Region 2 · Set 1 · Q24 · 3 marks

Complete and balance the following chemical equations : $\displaystyle \mathbf{3} \boldsymbol{\times} \mathbf{1}$
(a)
$\displaystyle \mathrm{MnO}_{4}^{-}+\mathrm{C}_{2} \mathrm{O}_{4}^{2-}+\mathrm{H}^{+} \longrightarrow$
(b)
$\displaystyle \mathrm{KMnO}_{4} \xrightarrow[513 \mathrm{~K}]{\text { Heat }}$
(c)
$\displaystyle \mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}+\mathrm{H}_{2} \mathrm{~S}+\mathrm{H}^{+} \longrightarrow$

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