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
Arrange the set of compounds in order of increasing boiling points.
1-Chloropropane, Isopropyl chloride, 1-Chlorobutane.
Explain why alkyl halides, though polar, are immiscible with water?
Define racemic mixture.
How many structural isomers are possible for a compound with the molecular formula C3H7Cl?
Mg reacts with RBr best in ____________.
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) \[\begin{array}{cc}
\phantom{...}\ce{CH3}\\
\phantom{}|\\
\ce{H3C - C - CH3}\\
\phantom{}|\\
\phantom{..}\ce{Br}
\end{array}\]
Reaction of \[\ce{C6H5CH2Br}\] with aqueous sodium hydroxide follows ______.
Which is the correct increasing order of boiling points of the following compounds?
1-Iodobutane, 1-Bromobutane, 1-Chlorobutane, Butane
Which is the correct increasing order of boiling points of the following compounds?
1-Bromoethane, 1-Bromopropane, 1-Bromobutane, Bromobenzene
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
Why alkyl halides though polar are immiscible with water?
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
