Tag: action of alkalis on some metals and metal oxides

$ZnO+2NaOH\rightarrow Na _2ZnO _2+H _2O$

$Zn\begin{pmatrix}OH\end{pmatrix} _2+2NaOH\rightarrow Na _2ZnO _2+2H _2O$

$PbO+2NaOH\rightarrow Na _2PbO _2+2H _2O$

Both A and C

$PbO+2NaOH\rightarrow Na _2PbO _2+H _2O$

$PbO+NaOH\rightarrow2Na _2PbO _2+H _2O$

$PbO+2NaOH\rightarrow2Na _2PbO _2+H _2O$

$PbO+NaOH\rightarrow Na _2PbO _2+H _2O$

$Al\begin{pmatrix}OH\end{pmatrix} _3+NaOH\rightarrow NaAlO _2+2H _2O$

$Al\begin{pmatrix}OH\end{pmatrix} _3+2KOH\rightarrow2KAlO _2+H _2O$

$Al\begin{pmatrix}OH\end{pmatrix} _3+KOH\rightarrow KAlO _2+2H _2O$

Both A and C

Dark green

Dark blue

Purple

Pink

$Pb\begin{pmatrix}OH\end{pmatrix} _2+2NaOH\rightarrow Na _2PbO _2+2H _2O$

$Pb\begin{pmatrix}OH\end{pmatrix} _2+NaOH\rightarrow2Na _2PbO _2+H _2O$

$Pb\begin{pmatrix}OH\end{pmatrix} _2+2NaOH\rightarrow Na _2PbO _2+H _2O$

$Pb\begin{pmatrix}OH\end{pmatrix} _2+NaOH\rightarrow Na _2PbO _2+2H _2O$

$\displaystyle \left[ { Cr\left( OH \right) } _{ 3 } \right] $

$\displaystyle { \left[ { Cr\left( OH \right) } _{ 4 } \right] }^{ - }$

$\displaystyle { \left[ { Cr\left( OH \right) } _{ 5 } \right] }^{ 2- }$

$\displaystyle { \left[ { Cr\left( OH \right) } _{ 6 } \right] }^{ 3- }$

$Zn[OH] _{2}$

ZnO

$ZnH _{2}$

$Na _{2}ZnO _{2}$