MCQ
The nucleus of helium contains
- AFour protons
- BFour neutrons
- ✓Two neutrons and two protons
- DFour protons and two electrons
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$(I)$ Acetic acid $(II)\, o-$ nitrophenol $(III)\, m-$ nitrophenol $(IV)\, o-$ boric acid
Select correct alternate
$C{H_2} = C{H_2}\xrightarrow[{oxid}]{{Hypochloro}}$ $M\xrightarrow{R}\begin{array}{*{20}{c}}
{C{H_2} - OH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_2} - OH}
\end{array}$
Where $M$ = molecule; $R$ = reagent $M$ and $R$ are
$Fe _{2} N ( s )+\frac{3}{2} H _{2}( g ) \rightleftharpoons 2 Fe ( s )+ NH _{3}( g )$