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Haloarenes are insoluble in water but ar...

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

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Haloarenes are insoluble in water because these cannot form hydrogen bonds with water molecules. However, these are soluble in benzene in accordance with the general principle of solubility i.e., like dissolves like. Haloarenes are organic compounds having a large hydrocarbon part (benzene ring) and are soluble in hydrocarbon solvents like benzene.
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(a) Alkyl halides react with AgNO_(2) and KNO_(2) to give R-NO_(2) and R-ONO respectively. Why? (b) Haloarenes are insoluble in water but are soluble in benzene. Why?

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Knowledge Check

  • BeO is insoluble but BaO is soluble as

    A
    lattice energy of `BeO` is higher than BaO due to small size of `Be^(2+)` ion and its covalent nature
    B
    hydration energy of BeO is lower than BaO due to small size `Be^(2+)` ion
    C
    BeO is amphoteric in nature while BaO is basic
    D
    BeO forms hydrated salts while BaO forms anhydrous salts
  • The alkali metal halides are soluble in water but LiF is insoluble because

    A
    It is amphoteric
    B
    The Li-F bond is highly ionic
    C
    Its lattice energy is high
    D
    `Li^(+)` ion is least hydrated
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