MCQ
An aqueous solution of ammonia consists of
- A${H^ + }$
- B$O{H^ - }$
- C$NH_4^ + $
- ✓$NH_4^ + $ and $O{H^ - }$
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$C{H_3} - \begin{array}{*{20}{c}}
{\begin{array}{*{20}{c}}
{C{H_3}} \\
|
\end{array}} \\
C \\
| \\
{C{H_3}}
\end{array} - C{H_2} - Cl$

If the oxidation number of metal in the salt was $3$, what would be the new oxidation number of metal ?