A_2O_x is oxidised to AO_3^- by MnO_4^- in ac | vedclass

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(B) In the reaction,$A$ in $A_2O_x$ is oxidized to $AO_3^-$. Let the oxidation state of $A$ in $A_2O_x$ be $n$. Then $2n + x(-2) = 0$,so $n = x$. In $

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The value of $x = 3$

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(B) In the reaction,$A$ in $A_2O_x$ is oxidized to $AO_3^-$. Let the oxidation state of $A$ in $A_2O_x$ be $n$. Then $2n + x(-2) = 0$,so $n = x$. In $AO_3^-$,the oxidation state of $A$ is $y$. Then $y + 3(-2) = -1$,so $y = +5$.Change in oxidation state per atom of $A = 5 - x$. Since there are $2$ atoms of $A$ in $A_2O_x$,total change $= 2(5 - x) = 10 - 2x$.For $MnO_4^-$ in acidic medium,$Mn^{+7}$ is reduced to $Mn^{+2}$,so the change in oxidation state is $5$.Equating equivalents: $n_{A_2O_x} 	imes (10 - 2x) = n_{KMnO_4} 	imes 5$.$1.5 	imes 10^{-3} 	imes (10 - 2x) = (0.03 	imes 0.040) 	imes 5$.$1.5 	imes 10^{-3} 	imes (10 - 2x) = 0.006$.$10 - 2x = 4 \implies 2x = 6 \implies x = 3$.Thus,the value of $x$ is $3$ and the oxide is $A_2O_3$.

$A_2O_x$ is oxidised to $AO_3^-$ by $MnO_4^-$ in acidic medium. If $1.5 \times 10^{-3} \text{ mole of } A_2O_x$ requires $40 \text{ mL}$ of $0.03 \text{ M } KMnO_4$ solution in acidic medium,which of the following statement$(s)$ is/are correct?

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In acidic medium,$K_2Cr_2O_7$ shows oxidising action as represented in the half reaction:
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$X, Y, Z$ and $A$ are respectively:

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$A_2O_x$ is oxidised to $AO_3^-$ by $MnO_4^-$ in acidic medium. If $1.5 \times 10^{-3} \text{ mole of } A_2O_x$ requires $40 \text{ mL}$ of $0.03 \text{ M } KMnO_4$ solution in acidic medium,which of the following statement$(s)$ is/are correct?

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The equivalent weight of $KIO_3$ in the given reaction is ($M=$ molecular mass) :$2 Cr(OH)_3 + 4 OH^{-} + KIO_3 \rightarrow 2 CrO_4^{2-} + 5 H_2O + KI$

$MnO_4^- + C_2O_4^{2-} + H^+ \to Mn^{2+} + CO_2 + H_2O$ :What are the correct stoichiometric coefficients for the balanced redox reaction?

Assign $A, B, C, D$ from the given type of reaction.$MnO_2 + 2KOH + \frac{1}{2}O_2 \longrightarrow K_2MnO_4 + H_2O$

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In acidic medium,$K_2Cr_2O_7$ shows oxidising action as represented in the half reaction:$Cr_2O_7^{2-} + XH^+ + Ye^- \rightarrow 2A + ZH_2O$$X, Y, Z$ and $A$ are respectively: