- ATransitional metals
- BAlkaline earth metals
- ✓Alkali metals
- DHalogens
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$\begin{array}{*{20}{c}}
{HO - C{H_2} - CH - CH = C - C{H_2} - C - C - OH} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,||} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Cl\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O\,\,\,\,\,\,O\,}
\end{array}$
$P = [Ne]\, 3s^23p^3$
$Q = [Ar]\,3d^{10}4s^24p^3$
$R = [He]\,2s^22p^5$
$S = [Ne]\,3s^1$
Incorrect statements is
Statement $I$ : Gallium is used in the manufacturing of thermometers.
Statement $II$ : A thermometer containing gallium is useful for measuring the freezing point ( $256 \mathrm{~K}$ ) of brine solution.
In the light of the above statement, choose the correct answer from the options given below :