MCQ
$Pbl_4$ does not exist because
- Aiodine is not reactive
- B$Pb(IV)$ is oxidizing and $I^-$ is strong reducing agent
- ✓$Pb(IV)$ is less stable than $Pb (II)$
- D$Pb^{4+}$ is not easily formed
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$\begin{array}{*{20}{c}}
{C{H_3} - CH - CH - CH - C{H_3}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,} \\
{OH\,\,\,\,\,\,\,OH\,\,\,\,\,OH\,\,}
\end{array}$
| Energy level | $K$ | $L$ | $M$ | $N$ |
| $n=1$ | $n=2$ | $n=3$ | $n=4.....n=\infty$ | |
| Energy | $- 864 \,a.u.$ | Zero |
the excitation energy needed to raise the electron from $M$ level to $n = \infty$ would be :