Advertisements
Advertisements
Question
Explain why alkyl halides, though polar, are immiscible with water?
Advertisements
Solution
To be miscible with water, the solute-water force of attraction must be stronger than the solute-solute and water-water forces of attraction. Alkyl halides are polar molecules and so held together by dipole-dipole interactions. Similarly, strong H-bonds exist between the water molecules. The new force of attraction between the alkyl halides and water molecules is weaker than the alkyl halide-alkyl halide and water-water forces of attraction. Hence, alkyl halides (though polar) are immiscible with water.
APPEARS IN
RELATED QUESTIONS
Give reasons : n-Butyl bromide has higher boiling point than t-butyl bromide.
Why dextro and laevorotatory isomers of Butan-2-ol are difficult to separate by fractional distillation?
Which of the following compounds has the highest boiling point?
How many structural isomers are possible for a compound with the molecular formula C3H7Cl?
Which of the following halide is 2°?
The decreasing order of boiling points of alkyl halides is:
Which of the following is liquid at room temperature (b.p. is shown against it)?
Which of the following possesses the highest melting point?
p-dichlorobenzene has a higher melting point than its o- and m-isomers because ____________.
Arrange the following compounds in the increasing order of their densities.
(a)
(b)
(c)
(d)
Reaction of \[\ce{C6H5CH2Br}\] with aqueous sodium hydroxide follows ______.
Which is the correct increasing order of boiling points of the following compounds?
1-Bromoethane, 1-Bromopropane, 1-Bromobutane, Bromobenzene
Out of o-and p-dibromobenzene which one has higher melting point and why?
Assertion: The boiling points of alkyl halides decrease in the order:
RI > RBr > RCl > RF
Reason: The boiling points of alkyl chlorides, bromides and iodides are considerably higher than that of the hydrocarbon of comparable molecular mass.
Which out of the following is an intensive property?
Arrange the following compounds in increasing order of their boiling points:
CH3CH2OH, CH3−CHO, CH3−COOH
Name the following halides according to the IUPAC system and classify them as alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:
\[\ce{CH3 C(C2H5)2CH2Br}\]
