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The correct descending order of thermal ...

The correct descending order of thermal stability of alkali metals hydrides is -

A

LiH `gt` NaH `gt` KH `gt` RbH `gt` CsH

B

CsH `gt` RbH `gt` KH `gt` NaH `gt` LiH

C

NaH `gt` KH `gt` LiH `gt` CsH `gt` RbH

D

CsH `gt` LiH `gt` KH `gt` NaH `gt` RbH

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • The correct order of the mobility of the alkali metal ions in aqueous solution is

    A
    `Rb^+gtK^+gtNa^+gtLi^+`
    B
    `Li^+gtNa^+gtK^+gtRb^+`
    C
    `Na^+gtK^+gtRb^+gtLi^+`
    D
    `Li^+gtRb^+gtNa^+gtK^+`

  • Decreasing order of stability is-

    A
    `O_(2)^(+) gtO_(2) gt O_(2)^(-) gtO_(2)^(2-)`
    B
    `O_(2)^(2-) gt O_(2)^(-) gt O_(2) gt O_(2)^(+)`
    C
    `O_(2) gt O_(2)^(+) gt O_(2)^(2-) gt O_(2)^(-)`
    D
    `O_(2)^(-) gt O_(2)^(2-) gt O_(2)^(+) gt O_(2)`

  • The decreasing order of stability of the chloride salts of alkali metals is-

    A
    LiCl `gt `KCl `gt`NaCl `gt`CsCI
    B
    CsCl`gt` KCI `gt` NaCI`gt` LiCl
    C
    NaCl `gt` KCI` gt `LiCI `gt`` CsCI
    D
    KCI`gt` CsCl `gt `NaCl`gt` LiCl

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