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p-Dichlorobenzene has higher m.p. and lower solubility than those of o- and m-isomers. Discuss. - CBSE (Science) Class 12 - Chemistry

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Question

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

Solution

p-Dichlorobenzene is more symmetrical than o-and m-isomers. For this reason, it fits more closely than o-and m-isomers in the crystal lattice. Therefore, more energy is required to break the crystal lattice of p-dichlorobenzene. As a result, p-dichlorobenzene has a higher melting point and lower solubility than o-and m-isomers.

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APPEARS IN

 NCERT Solution for Chemistry Textbook for Class 12 (2018 to Current)
Chapter 10: Haloalkanes and Haloarenes
Q: 18 | Page no. 312

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Solution p-Dichlorobenzene has higher m.p. and lower solubility than those of o- and m-isomers. Discuss. Concept: Methods of Preparation of Haloalkanes and Haloarenes.
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