MCQ
Each pair forms ideal solution except?
- A$C_2H_5Br$ and $C_2H_5I$
- B$C_6H_5Cl$ and $C_6H_5Br$
- C$C_6H_6$ and $C_6H_5CH_3$
- ✓$C_2H_5I$ and $C_2H_5OH$
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Assertion $(A)$ : $\mathrm{PH}_3$ has lower boiling point than $\mathrm{NH}_3$.
Reason $(R)$ : In liquid state $\mathrm{NH}_3$ molecules are associated through vander waal's forces, but $\mathrm{PH}_3$ molecules are associated through hydrogen bonding. In the light of the above statements, choose the most appropriate answer from the options given below:

$CH_3CH_2OH$ $\xrightarrow{{P + {I_2}}}A\xrightarrow[{{\text{dry ether}}}]{{Mg}}B\xrightarrow{{HCHO}}C\xrightarrow{{{H_2}O}}D$ the compound $D$ is