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The p-isomer of dichlorobenzene has high...

The p-isomer of dichlorobenzene has higher melting point than O-and M-isomer. Why ?

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The melting point of para- isomer is quite higher than that of ortho or meta isomer. This is due to the fact that it has symmetrical structure and therefore its molecules can easily pack closely in crystal lattice. As a result intermolecular forces of attraction are stronger and therefore, greater energy is required to break its lattice and it melts at higher temperature.
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ACCURATE PUBLICATION-HALOALKANES AND HALOARENES -2 OR 5 MARKS QUESTIONS
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  2. Why is Vinyl chloride less reactive than ethyl chloride ?

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  3. Why is sulphuric acid not used during the reaction of alcohols with KI...

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  4. Haloarenes are insoluble in water but soluble in benzene. Explain.

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  5. The p-isomer of dichlorobenzene has higher melting point than O-and M-...

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  6. What are ambident uncleophiles ? Explain with an example.

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  7. Write short notes on Swarts reaction

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  8. How Sandmeyer's reaction differs from Gattermann's reaction.

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  9. Alkyl halides though polar, are immiscible with water, why ?

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  10. Give different Enantiomers of Butanol-2.

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  11. Give different Enantiomers of 2 chlorobutane.

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  12. What is iodoform test ?

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  13. How is DDT prepared from chlorobenzene ? Give the chemical equation on...

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  14. Give the reaction chloroform with alcoholic KOH.

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  15. Why is Wurtz reaction not suitable for the preparation of odd number a...

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  16. Write two environmental effects of dichloromethane.

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  17. Explain why Grignard reagents should be prepared under anhydrous con...

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  18. Iodoform gives a precipitate with silver nitrate on heating while chlo...

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  19. How will you convert. Anline into chlorobenzene.

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  20. Complete the following reaction : CH3 CH2 Br + Ag CN to

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