Which of the following statements is not correct?
- A$Mn_2O_7$ gives $HMnO_4$ on reaction with water.
- BOn heating,$AgNO_3$ gives $Ag$,$NO_2$,and $O_2$.
- C$V_2O_5$ is amphoteric and dissolves in alkalies to give $VO_4^{3-}$ ions.
- DAll of the above are incorrect.
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$E^{\circ}_{M^{3+} \mid M^{2+}} \text{ (in } V\text{) is highest for}$
Passivity of iron is due to the formation of
Medium
View SolutionIdentify the statements which are not correct.
$i$. $CrO_3$ and $Mn_2O_7$ are basic oxides
$ii$. $V_2O_3$ and $V_2O_4$ are acidic oxides
$iii$. $Cr(VI)$ is more stable than $W(VI)$
$i$. $CrO_3$ and $Mn_2O_7$ are basic oxides
$ii$. $V_2O_3$ and $V_2O_4$ are acidic oxides
$iii$. $Cr(VI)$ is more stable than $W(VI)$
Ferrous sulphate on heating gives
Medium
View Solution$Cr^{2+}$ and $Mn^{3+}$ both possess $d^4$ electronic configuration. Therefore,
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