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"Solubility of alkali metal fluorices in...

"Solubility of alkali metal fluorices increases down the group " Select correct explanation for given statement`:`

A

Hydration energy increases and lattice energy decreases down the group

B

Both energy decrease down the group but decrease in hydration energy is rapid

C

Both energy decrease down the group but decrese in lattice energy is rapid

D

Both energy increase down the group but increase in hydration energy is rapid.

Text Solution

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The correct Answer is:
3
Although both hydration and lattice energies of alkali metal fluorides decreases down the group and hydration energy dominates over lattice energy ,therefore, solubility increases down the group.
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Given below are two statements Statement I : None of the alkaline earth metal hydroxides dissolve in alkali. Srtatement II : Solubility of alkaline earth metal hydroxides in water increases down the group. In the light of the above statements, choose the most appropriate answer from the options given below :

Solubility of groups 1 and 2 fluorides increases down the group'. Which of the following is correct explanation for the above given statement ?

Knowledge Check

  • Solubility of alkaline earth metal sulphates decreases down the group 2 because

    A
    they become more ionic
    B
    lattica energy of sulphates does not vary siginifacantly
    C
    hydration energy decreases rapidly from `Be^(2+)` to `Ba^(2+)`
    D
    latica energy plays more predominant role than hydration energy

  • The solubility order for alkali metal fluoride in water is

    A
    `LiF lt RbF lt KF lt NaF`
    B
    `RbF lt KF lt NaF lt LiF`
    C
    `LiF lt RbF lt NaF lt KF `
    D
    `LiF lt NaF lt KF lt RbF `

  • Solubility and thermal stability both increase down the group for

    A
    hydroxides of alkaline earth metals `[M(OH)_2]`
    B
    fluorides of alkali metals (MF)
    C
    perchlorates of alkali metals `(MClO_4)`
    D
    hydrides of alkali metals (MH).

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    The solubility order for alkali metal floride in water is :

    The solubility order for alkali metal fluoride in water is :

    Assertion : Solubilities of alkali metal fluorides and carbonates increase down the group. Reason : Hydration energies of alkali metal halides decrease down the group with increase in size of cations.

    Metallic nature increases moving down the group because:

    Alkali metal oxides are soluble in

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