MCQ
Product $(A)$ is


- A$\begin{matrix}
Ph-C{{H}_{2}}-N-C{{H}_{2}}-Ph \\
| \\
\,\,\,\,\,\,\,\,\,N=O \\
\end{matrix}$ - B$\begin{matrix}
Ph-C{{H}_{2}}-N-N=O \\
\,\,\,\,\,| \\
\,\,\,\,\,\,Ph \\
\end{matrix}$ - ✓

- D$Ph-N = O$



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$I.$ $1$ molecule of oxygen
$II.$ $1$ atom of nitrogen
$III.$ $1 \times {10^{ - 10}}$ $g$ molecular weight of oxygen
$IV.$ $1 \times {10^{ - 10}}$ $g$ atomic weight of copper