Advertisements
Advertisements
प्रश्न
Arrange the set of compounds in order of increasing boiling points.
Bromomethane, Bromoform, Chloromethane, Dibromomethane.
Advertisements
उत्तर
The strength of the intermolecular interactions in organic molecules determines their boiling points. These forces consist of van der Waals forces and dipole-dipole interactions and depend on the molecular mass and surface area of the molecules. Compounds with higher molecular mass have higher boiling points. Thus, the correct order is:
Chloromethane < Bromomethane < Dibromomethane < Bromoform
संबंधित प्रश्न
p-Dichlorobenzene has higher m.p. and lower solubility than those of o- and m-isomers. Discuss.
Why dextro and laevorotatory isomers of Butan-2-ol are difficult to separate by fractional distillation?
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:
Mg reacts with RBr best in ____________.
p-dichlorobenzene has a higher melting point than its o- and m-isomers because ____________.
Arrange the following compounds in increasing order of their boiling points.
(a) \[\begin{array}{cc}
\ce{CH3}\phantom{..................}\\
\backslash\phantom{...........}\\
\ce{CH - CH - CH2Br}\\
/\phantom{.............}\\
\ce{CH3}\phantom{..................}
\end{array}\]
(b) \[\ce{CH3CH2CH2CH2Br}\]
(c) \[\begin{array}{cc}
\phantom{...}\ce{CH3}\\
\phantom{}|\\
\ce{H3C - C - CH3}\\
\phantom{}|\\
\phantom{..}\ce{Br}
\end{array}\]
Which is the correct increasing order of boiling points of the following compounds?
1-Iodobutane, 1-Bromobutane, 1-Chlorobutane, Butane
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.
Arrange the following compounds in increasing order of their boiling points:
CH3CH2OH, CH3−CHO, CH3−COOH
Arrange the isomeric dichlorobenzene in the increasing order of their boiling point and melting points.
Write the structure of the following organic halogen compound.
1,4-Dibromobut-2-ene
Write the structure of the following organic halogen compound.
4-tert-Butyl-3-iodoheptane
Write the structure of the following organic halogen compound.
4-tert-Butyl-3-iodoheptane
Write the structure of the following organic halogen compound.
4-tert-Butyl-3-iodoheptane
Write the structure of the following organic halogen compound.
4-tert-Butyl-3-iodoheptane
