KCET · Chemistry · Redox Reactions
For the redox reaction
\( \mathrm{xMnO}_{4}^{-}+\mathrm{yH}_{2} \mathrm{C}_{2} \mathrm{O}_{4}+\mathrm{zH}^{+} \rightarrow \mathrm{mMn}^{2+}+\mathrm{nCO}_{2}+\mathrm{pH}_{2} \mathrm{O} \)
The values of \( \mathrm{x}, \mathrm{y}, \mathrm{m} \) and \( \mathrm{n} \) are
- A \( 10,2,5,2 \)
- B \( 2,5,2,10 \)
- C \( 6,4,2,5 \)
- D \( 3,5,2,10 \)
Answer & Solution
Correct Answer
(B) \( 2,5,2,10 \)
Step-by-step Solution
Detailed explanation
The balance chemical equation is,
\( 2 \mathrm{MnO}_{4}+5 \mathrm{H}_{2} \mathrm{C}_{2} \mathrm{O}_{4}+6 \mathrm{H}^{+} \rightarrow 2 \mathrm{Mn}^{2+}+10 \mathrm{CO}_{2}+8 \mathrm{H}_{2} \mathrm{O} \)
Therefore, the value of stoichiometric constants is,
\( x=2 ; y=5 ; m=2 \) and \( n=10 \)
\( 2 \mathrm{MnO}_{4}+5 \mathrm{H}_{2} \mathrm{C}_{2} \mathrm{O}_{4}+6 \mathrm{H}^{+} \rightarrow 2 \mathrm{Mn}^{2+}+10 \mathrm{CO}_{2}+8 \mathrm{H}_{2} \mathrm{O} \)
Therefore, the value of stoichiometric constants is,
\( x=2 ; y=5 ; m=2 \) and \( n=10 \)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- The emf of a galvanic cell constituted with the electrodes \(\mathrm{Zn}^{2+} \mid \mathrm{Zn}(-0.76 \mathrm{~V})\) and \(\mathrm{Fe}^{2+} \mid \mathrm{Fe}(-0.41 \mathrm{~V})\) isKCET 2013 Hard
- The resistance of \(0.1 \mathrm{M}\) weak acid \(\mathrm{H} A\) in a conductivity cell is \(2 \times 10^3 \mathrm{Ohm}\). The cell constant of the cell is \(0.78 \mathrm{C} \mathrm{m}^{-1}\) and \(\lambda_{\mathrm{m}}^{\circ}\) of acid \(\mathrm{H} A\) is \(390 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}\). The \(\mathrm{pH}\) of the solution isKCET 2023 Hard
- Vapour pressure of pure 'A' is \(70 \mathrm{~mm}\) of \(\mathrm{Hg}\) at \(25^{\circ} \mathrm{C}\). It forms an ideal solution with ' \(B\) ' in which mole fraction of \(A\) is \(0.8\). If the vapour pressure of the solution is \(84 \mathrm{~mm}\) of \(\mathrm{Hg}\) at \(25^{\circ} \mathrm{C}\), the vapour pressure of pure ' \(B\) ' at \(25^{\circ} \mathrm{C}\) isKCET 2009 Easy
- \( 2 \)-butyne is reduced to trans-but-2-ene usingKCET 2019 Easy
- Time required for 100 per cent completion of a zero order reaction isKCET 2010 Medium
- Consider the following gaseous equilibria with equilibrium constants \(\mathrm{K}_{1}\) and \(\mathrm{K}_{2}\) respectively.
\(\begin{aligned} \mathrm{SO}_{2}(\mathrm{~g})+& \frac{1}{2} \mathrm{O}_{2}(\mathrm{~g}) \rightleftharpoons \mathrm{SO}_{3}(\mathrm{~g}) \\ 2 \mathrm{SO}_{3}(g) & \rightleftharpoons 2 \mathrm{SO}_{2}(g)+\mathrm{O}_{2}(g) \end{aligned}\)
The equilibrium constants are related asKCET 2010 Medium
More PYQs from KCET
- In an adiabatic expansion of an ideal gas the product of pressure and volumeKCET 2020 Easy
- The first human like being isKCET 2022 Easy
- Which of the following is NOT true regarding the usage of hydrogen as a fuel?KCET 2019 Medium
- If \(y=\frac{\cos x}{1+\sin x}\), then
(a) \(\frac{d y}{d x}=\frac{-1}{1+\sin x}\)
(b) \(\frac{d y}{d x}=\frac{1}{1+\sin x}\)
(c) \(\frac{\mathrm{dy}}{\mathrm{dx}}=-\frac{1}{2} \sec ^2\left(\frac{\pi}{4}-\frac{\mathrm{x}}{2}\right)\)
(d) \(\frac{d y}{d x}=\frac{1}{2} \sec ^2\left(\frac{\pi}{4}-\frac{x}{2}\right)\)KCET 2025 Medium - Which cleansing agent gets precipitated in hard water?KCET 2019 Hard
- Five identical resistors each of resistance \( R=1500 \Omega \) are connected to a \( 300 \vee \) battery as shown in the circuit. The reading if the ideal ammeter \( \mathrm{A} \) is
KCET 2018 Easy