MCQ
Identify isomers $A$ and $B$
- ✓

- B

- C

- Dand $\begin{array}{*{20}{c}}
{C{H_2}}\\
{||\,\,\,\,\,\,\,}\\
{C{H_2}}
\end{array}$




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[Given: The threshold frequency of platinum is $1.3$ $\times 10^{15} \,s ^{-1}$ and $h =6.6 \times 10^{-34} \,J \,s$.]
$(i)$ Methylamine $(ii)$ Phosgene
$(iii)$Phosphine $(iv)$ Dimethylamine
$CH_3 -C\equiv C-H$ $\xrightarrow{{C{H_3}MgBr}}$ $CH_4+(A)$ $\mathop {\xrightarrow{{(i)\,C{O_2}}}}\limits_{(ii)\,{H_2}O/{H^ \oplus }} $ $(B)$
$(B)$ will be :
Major Product $(A)$ will be