- ✓

- B

- C

- D






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$(x)\begin{array}{*{20}{c}}
{O\,\,\,}\\
{||\,\,\,}\\
{C{H_3} - S - O - H}\\
{||\,\,\,\,}\\
{O\,\,\,\,}
\end{array}$
$\begin{array}{*{20}{c}}
{\,\,\,\,\,O}\\
{\,\,\,\,\,\,||}\\
{(y)\,\,\,C{H_3} - C - O - H}
\end{array}$
$(z)\,\, CH_3 -OH$

$Na _{2} O , As _{2} O _{3}, N _{2} O , NO$ and $Cl _{2} O _{7}$
Number of amphoteric oxides is ..... .

Assertion $(A) :$ A simple distillation can be used to separate a mixture of propanol and propanone.
Reason $(R) :$ Two liquids with a difference of more than $20^{\circ} \mathrm{C}$ in their boiling points can be separated by simple distillations.
In the light of the above statements, choose the most appropriate answer from the options given below: