Choose the correct statements from the following:
$A$. $Mn_2O_7$ is an oil at room temperature.
$B$. $V_2O_4$ reacts with acid to give $VO^{2+}$ ions.
$C$. $CrO$ is a basic oxide.
$D$. $V_2O_5$ does not react with acid.
Choose the correct answer from the options given below:

  • A
    $A, B$ and $D$ only
  • B
    $A$ and $C$ only
  • C
    $A, B$ and $C$ only
  • D
    $B$ and $C$ only

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