Advertisements
Advertisements
प्रश्न
Which of the following compounds will have the highest melting point and why?
| (I) |  |
|
(II) |
 |
| (III) |  |
Advertisements
उत्तर
Compound (II)
Reasons: The molecular structure of compound (II) shows that both the substituents (i.e. \[\ce{CH3}\] and \[\ce{Cl}\] are at para position. The para-isomers have higher melting points as compared to their ortho and meta-isomers. It is due to symmetry of para-isomers that fits in crystal lattice better as compared to ortho-and meta-isomers.
APPEARS IN
संबंधित प्रश्न
Give reasons : n-Butyl bromide has higher boiling point than t-butyl bromide.
Arrange the set of compounds in order of increasing boiling points.
Bromomethane, Bromoform, Chloromethane, Dibromomethane.
Arrange the set of compounds in order of increasing boiling points.
1-Chloropropane, Isopropyl chloride, 1-Chlorobutane.
For the same alkyl group, an alkyl bromide has a higher boiling point than alkyl fluoride because:
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 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)
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-Bromoethane, 1-Bromopropane, 1-Bromobutane, Bromobenzene
Out of o-and p-dibromobenzene which one has higher melting point and why?
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
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
Name the following halides according to the IUPAC system and classify them as alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:
\[\ce{CH3 C(C2H5)2CH2Br}\]
Write the structure of the following organic halogen compound.
4-tert-Butyl-3-iodoheptane
