Identify the correct statement$(s)$ among the following.

  • A
    $V_2O_5$ reacts with alkalies as well as acids.
  • B
    In Misch metal,$S, C, Ca$ and $Al$ are present in trace amounts with $Ce$.
  • C
    $2Cu^{+} \xrightarrow{aq.} Cu^{2+} + Cu$
  • D
    All of the above are correct.

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Similar Questions

Which of the following substances are colored even in the absence of $d-d$ transitions?

Which of the following orders is correct?

Match the following:
List-$I$List-$II$
$A$. Oxidation state of $V$ in $VOCl_2$$I$. $0$
$B$. Number of unpaired electrons in $MnO_4^{2-}$ ion$II$. $1$
$C$. Number of unpaired electrons in $[NiCl_4]^{2-}$ ion$III$. $5$
$D$. This oxidation state is exhibited by all lanthanide ions$IV$. $3$
$V$. $4$
$VI$. $2$

The correct answer is:

Which of the following represents the correct order of stability for the given oxidation states?

Statement $(I)$ $Co^{2+}$ has a higher magnetic moment than $Cr^{3+}$.
Statement $(II)$ Ionisation enthalpies of $Ce$,$Pr$ and $Nd$ are higher than $Th$,$Pa$ and $U$.
Which of the following is correct?

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