Subjective Type

p-Dichlorobenzene has higher melting point and lower solubility than those of o- and m- isomers.

Solution

The p-isomer being more symmetrical fits closely in the crystal lattice and thus has stronger intermolecular forces of attraction than o- and m-isomers.

Since during melting or dissolution, the crystal lattice breaks, therefore , a larger amount of energy is needed or melt or dissolve the p-isomer than the corresponding o- and m-isomers.

In other words, the melting point of the p-isomer is higher and its solubility lower than the corresponding o-and m-isomers.

SIMILAR QUESTIONS

Haloalkanes and Haloarenes

A solution of $$(-) -2$$-chloro-$$2$$-phenylethane in toluene racemises slowly in the presence of a small amount of $$SbCl_{5}$$, due to the formation of:

Haloalkanes and Haloarenes

Why are alkyl halides insoluble in water?

Haloalkanes and Haloarenes

Alkyl halides are immiscible in water though they are polar because ?

Haloalkanes and Haloarenes

The amount paid to the petty cashier at the beginning of a period is known as __________ amount.

Haloalkanes and Haloarenes

Which of the following are resolvable?

Haloalkanes and Haloarenes

$$7-$$Bromo$$-1,3,5-$$cyclopheptatriene exists as ionic species in aqueous solution, while $$5-$$bromo $$-1,3-$$cyclopentadiene does not ionise even in the presence of $$Ag^+(aq)$$. Explain.

Haloalkanes and Haloarenes

Pick up the correct statement about alkyl halides.

Haloalkanes and Haloarenes

Which of the following statements is/are correct?

Haloalkanes and Haloarenes

Chloroethane is insoluble in water. Why?

Haloalkanes and Haloarenes

Explain why Alkyl halides, though polar, are immiscible with water?

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