Question

Which has a higher melting point between $1,3 - dichlorobenzene$ and $1,4 - dichlorobenzene$ ?
A. $1,3 - dichlorobenzene$
B. $1,4 - dichlorobenzene$
C. Both have same melting point
D. None of these

Answer 1

Hint: We have to know that the melting point is normally characterized as where materials change from a string to a fluid. The temperature at which strong changes its state to fluid at environmental pressing factor is known as the liquefying point of that fluid. This is where both fluid and strong stages exist at balance.

Complete answer:
For $1,3 - dichlorobenzene$ ,
It is a natural compound with the recipe ${C_6}{H_4}C{l_2}$ . It is the most un-basic of the three isomers of dichlorobenzene, it is a lackluster fluid that is insoluble in water. It is delivered as a minor side-effect of the chlorination of benzene, however can likewise be set up in a coordinated way by the Sandmeyer reaction of three-chloroaniline. It additionally emerges from the isomerization of the other di-chloro-benzenes at high temperature.
The melting point of $1,3 - dichlorobenzene$ is $ - 24.7^\circ C$ .
For $1,4 - dichlorobenzene$ ,
It is a natural compound with the equation ${C_6}{H_4}C{l_2}$ . This dreary strong scent has a solid scent. The particle comprises a benzene ring with two chlorine iotas (supplanting hydrogen molecules) on restricting locales of the ring.
The melting point of $1,4 - dichlorobenzene$ is $53.1^\circ C$ .
Where, $1,4 - dichlorobenzene$ is a higher melting point than $1,3 - dichlorobenzene$ .
Therefore, option (A) is incorrect and option (B) is correct.
Both the compounds do not have the same melting point.
Therefore, option (C) is incorrect.
The higher melting point is $1,4 - dichlorobenzene .
Therefore, option (D) is incorrect.

Note:
We have to know that, $1,4 - dichlorobenzene$ is utilized as a sanitizer, pesticide, and antiperspirant, most naturally in mothballs in which it is a swap for the more conventional naphthalene due to naphthalene's more noteworthy combustibility. It is likewise utilized as a forerunner in the creation of the synthetically and thermally safe polymer poly(p-phenylene sulfide).