(C) The reduction of $Cu^{2+}$ to $Cu^{+}$ occurs when $Cu^{2+}$ reacts with iodide ions $(I^-)$ because $CuI$ is insoluble and the reaction is thermo

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(C) The reduction of $Cu^{2+}$ to $Cu^{+}$ occurs when $Cu^{2+}$ reacts with iodide ions $(I^-)$ because $CuI$ is insoluble and the reaction is thermodynamically favorable.The balanced chemical equation is: $2Cu^{2+} + 4I^- \to 2CuI(s) + I_2(s)$.

Class 12 Chemistry d-and f-Block Elements Chemical properties

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$Cu^{2+}$ ions will be reduced to $Cu^{+}$ ions by the addition of an aqueous solution of

AIIMS 1992 All AIIMS

A
$KF$
B
$KCl$
C
$KI$
D
$KOH$

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d-and f-Block Elements

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Chemical properties

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AIIMS 1992 Paper All AIIMS years →

Arrange the oxides $CrO$,$CrO_3$,and $Cr_2O_3$ in the decreasing order of acidic strength.

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$I$. $Na_2Cr_2O_7 + X \xrightarrow{\Delta} Cr_2O_3$
$II$. $Cr_2O_3 + Y \xrightarrow{\Delta} Cr$
$X$ and $Y$ are :

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Addition of high proportions of manganese makes steel useful in making rails of railroads,because manganese

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The compound $AgF_2$ is an unstable compound. However,if formed,the compound acts as a very strong oxidizing agent. Why?

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The correct order of oxidizing power of the given ions is

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$Cu^{2+}$ ions will be reduced to $Cu^{+}$ ions by the addition of an aqueous solution of

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Arrange the oxides $CrO$,$CrO_3$,and $Cr_2O_3$ in the decreasing order of acidic strength.

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$I$. $Na_2Cr_2O_7 + X \xrightarrow{\Delta} Cr_2O_3$
$II$. $Cr_2O_3 + Y \xrightarrow{\Delta} Cr$
$X$ and $Y$ are :