Advertisements
Advertisements
प्रश्न
Out of o-and p-dibromobenzene which one has higher melting point and why?
उत्तर
p-Dibromobenzenc has higher melting point than its o-isomer.
It is due to symmetry of p-isomer which fits in crystal lattice better than the o-isomer.
APPEARS IN
संबंधित प्रश्न
Give reasons : n-Butyl bromide has higher boiling point than t-butyl bromide.
Explain why alkyl halides, though polar, are immiscible with water?
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?
Which of the following is liquid at room temperature (b.p. is shown against it)?
Arrange the following compounds in increasing order of their boiling points.
(a) \[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
\backslash\phantom{.............}\\
\ce{CH - CH2Br}\\
/\phantom{.............}\\
\ce{CH3}\phantom{.................}
\end{array}\]
(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
Assertion: The boiling points of alkyl halides decrease in the order:
\[\ce{RI > RBr > RCl > RF}\]
Reason: The boiling points of alkyl chlorides, bromides and iodides are considerably higher than that of the hydrocarbon of comparable molecular mass.
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
