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The alkali metals font salt likelydrides...

The alkali metals font salt likelydrides by direct synthesis at elevated temperatures. The thermal stability of these hydrides decreases in which of the following onders?

A

`KH gt NaH gt LiH gt CsH gt RbH`

B

`NaH gt LiHgt KH gt RbHgt CsH`

C

`LiH gt NaH gt KH gt RbH gt CsH`

D

`CsH gt RbH gt KH gt NaH gt LiH`

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • The alkali metals form salt like hydrides by direct synthesis at elevated temperatures. The thermal stability of these hydrides decreases in which of the following orders ?

    A
    `NaH gt LiH gt KH gt RbH gt CsH`
    B
    `LiH gt NaH gt KH gt RbH gt CsH`
    C
    `CsH gt RbH gt KH gt NaH gt LiH`
    D
    `KH gt NaH gt LiH gt CaH gt RbH`

  • Hydrogen forms a strochiometric hydride with which of the following metal

    A
    Lanthanum
    B
    Potassium
    C
    Titanium
    D
    Platinum

  • As we move down the group covalent character decreaes, solubility increases and thermal stability increases for which of the following?

    A
    Fluorides of alkali metal
    B
    carbonates of alkali metal
    C
    Sulphates of alkali earth metal
    D
    None of thes

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