MCQ
Which of the following is an ideal solution
- AWater + ethanol
- BChloroform + carbon tetrachloride
- ✓Benzene + toluene
- DWater + hydrochloric acid
✓
Answer
Correct option: C.
Benzene + toluene
c
A solution of ethyl alcohol and water shows positive deviation from Raoult's law due to the presence of hydrogen bonding present in the ethyl alcohol solution and water molecules.
A solution of ethyl alcohol and water shows positive deviation from Raoult's law due to the presence of hydrogen bonding present in the ethyl alcohol solution and water molecules.
Chloroform $+$ carbon tetrachloride show positive deviation from Raoult's law Water $+ HCl$ is a non-ideal solution showing negative deviations from Raoult's law.
In a Benzene-toluene mixture, $A - B$ interactions are almost equal to $A - A$ and $B -B$ interactions due to the very small difference in the two compounds, i.e., they differ just by one $CH_2$ group. Hence, no deviation will occur from Raoult's law.
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