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CG PET Melting Point — practice questions

Explore 1 free Melting Point questions in CG PET Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Melting Point questions and exercises with answers

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Among para-, meta-, ortho-dichlorobenzene, the **melting point** is highest for:Read the answer and worked solution →

Worked practice questions

Among para-, meta-, ortho-dichlorobenzene, the **melting point** is highest for:

  1. ortho-isomer
  2. meta-isomer
  3. para-isomer (symmetric, packs tightly in crystal lattice)
  4. All equal
Show answer and solution

Correct answer: C. para-isomer (symmetric, packs tightly in crystal lattice)

Para-dichlorobenzene has highest m.p. because its symmetrical linear structure packs efficiently in the crystal — stronger lattice energy. Ortho/meta have less efficient packing.

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