(B) In reaction $I$: $Cu + Ag_2SO_4 \longrightarrow CuSO_4 + 2Ag$. Here,the oxidation state of $Cu$ increases from $0$ to $+2$,which is oxidation.In r

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(B) In reaction $I$: $Cu + Ag_2SO_4 \longrightarrow CuSO_4 + 2Ag$. Here,the oxidation state of $Cu$ increases from $0$ to $+2$,which is oxidation.In reaction $II$: $Zn + CuSO_4 \longrightarrow ZnSO_4 + Cu$. Here,the oxidation state of $Cu$ decreases from $+2$ to $0$,which is reduction.Thus,in the given mixtures,copper undergoes oxidation in $I$ and reduction in $II$.

Class 11 Chemistry Redox Reactions Mix Examples-Redox Reactions

Medium

In the following reaction mixtures,
$I$. $Cu / CuSO_4 + Ag / Ag_2SO_4$
$II$. $Zn / ZnSO_4 + Cu / CuSO_4$
copper respectively undergoes

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A
reduction and reduction
B
oxidation and reduction
C
reduction and oxidation
D
oxidation and oxidation

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Redox Reactions

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Mix Examples-Redox Reactions

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Which of the following will not change the orange colour of $K_2Cr_2O_7$ into green colour in an acidic medium?

Medium

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$KMnO_4$ reacts with ferrous ammonium sulphate according to the equation
$MnO_4^- + 5Fe^{2+} + 8H^+ \to Mn^{2+} + 5Fe^{3+} + 4H_2O$
Here $10 \ mL$ of $0.1 \ M$ $KMnO_4$ is equivalent to:

Easy

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$KI$ is oxidised into $I_2$ by using the reagent

Medium

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Assign $A, B, C, D$ from the given type of reaction.
$K_2Cr_2O_7 + 2NaOH \longrightarrow 2K_2CrO_4 + H_2O$
Identify the nature of the product $CrO_4^{2-}$ formed in the reaction.

Medium

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$2 \text{ mol}$ of $FeSO_4$ are oxidized by $X \text{ mol}$ of $KMnO_4$ whereas $2 \text{ mol}$ of $FeC_2O_4$ are oxidized by $Y \text{ mol}$ of $KMnO_4$. The ratio of $X$ and $Y$ is:

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In the following reaction mixtures,$I$. $Cu / CuSO_4 + Ag / Ag_2SO_4$$II$. $Zn / ZnSO_4 + Cu / CuSO_4$copper respectively undergoes

Similar Questions

Which of the following will not change the orange colour of $K_2Cr_2O_7$ into green colour in an acidic medium?

$KMnO_4$ reacts with ferrous ammonium sulphate according to the equation$MnO_4^- + 5Fe^{2+} + 8H^+ \to Mn^{2+} + 5Fe^{3+} + 4H_2O$Here $10 \ mL$ of $0.1 \ M$ $KMnO_4$ is equivalent to:

$KI$ is oxidised into $I_2$ by using the reagent

Assign $A, B, C, D$ from the given type of reaction.$K_2Cr_2O_7 + 2NaOH \longrightarrow 2K_2CrO_4 + H_2O$Identify the nature of the product $CrO_4^{2-}$ formed in the reaction.

$2 \text{ mol}$ of $FeSO_4$ are oxidized by $X \text{ mol}$ of $KMnO_4$ whereas $2 \text{ mol}$ of $FeC_2O_4$ are oxidized by $Y \text{ mol}$ of $KMnO_4$. The ratio of $X$ and $Y$ is:

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In the following reaction mixtures,
$I$. $Cu / CuSO_4 + Ag / Ag_2SO_4$
$II$. $Zn / ZnSO_4 + Cu / CuSO_4$
copper respectively undergoes

$KMnO_4$ reacts with ferrous ammonium sulphate according to the equation
$MnO_4^- + 5Fe^{2+} + 8H^+ \to Mn^{2+} + 5Fe^{3+} + 4H_2O$
Here $10 \ mL$ of $0.1 \ M$ $KMnO_4$ is equivalent to:

Assign $A, B, C, D$ from the given type of reaction.
$K_2Cr_2O_7 + 2NaOH \longrightarrow 2K_2CrO_4 + H_2O$
Identify the nature of the product $CrO_4^{2-}$ formed in the reaction.