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Why is the solubility of haloalkanes in ...

Why is the solubility of haloalkanes in water very low ?

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Although haloalkanes are polar molecules, neither they form H-bonds with warer nor can they brea the H-bonds already existing between water molecules. As a result, the slubility of haloalkanes in water is very low.
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(a) Write the following reaction: (i) Wurtz Fittig reaction (ii) Balz-Schiemann reaction (iii) Friedal Crafts Alkylation reaction (b) Why is solubility of haloalkanes in water very low? (c) Give one use of Feron.

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The solubility of a crystalline compound in water is influenced by two factors. These are lattice enthalpy and hydration enthalpy. Lattice enthalpy is needed to separate the ions from the crystal lattice. At the same time hydration enthalpy is released when the ion are dissolved in water. The resultant of these two opposing tendencies guides the solubility of the compound in water. If lattice enthalpy has a greater magnitude, the compound has low solubility. In case hydration enthalpy is more, then the compound is highly soluble in water. The hydroxide which is maximum soluble in water is :

PRADEEP-HALOALKANES AND HALOARENES-NCERT EXEMPLAR PROBLEMS WITH ANSWERS, HINTS AND SOLUTIONS (SHORT ANSWER QUESTIONS)
  1. Which of the following compounds (a) and (b) will not react with a mix...

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  2. Which of the products will be major product in the reaction given belo...

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  3. Why is the solubility of haloalkanes in water very low ?

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  4. Draw other resonance structures related to the following structure and...

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  5. Classify the following compounds as primary, secondary and tertiary ha...

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  6. Compound 'A' with molecular formula C(4)H(9)Br is treated with aq. KOH...

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  7. Write the structures and names of the compounds formed when compound '...

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  8. Identify the product A and B formed in the following reaction: CH(3)...

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  9. Which of the following compounds will have the highest melting point a...

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  10. Write down the structure and IUPAC name for neo-pentylbromide.

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  11. A hydrocarbon of molecular mass 72 g mol^(-1) gives a single monochlor...

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  12. Name of the alkene which will yield 1-chloro-1-methylcyclohexane by it...

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  13. Which of the following haloalkanes reacts with aqueous KOH most easily...

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  14. Why can aryl halides not be prepared by reaction of phenol with HCl in...

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  15. Which of the following compounds would undergo S(N)1 reaction faster a...

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  16. Allyl chloride is hydrolysed more readily than n-propyl chloride. Why ...

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  17. Why is it necessary to avoid even traces of moisture during the use of...

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  18. How do polar solvents help in the first step in S(N)1 mechanism?

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  19. Write a test to detect the presence of double bond in a molecule.

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  20. Diphenyls are potential threat to the envioronment. How are these prod...

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