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Assertion Alkaline earth metals dissolve...

Assertion Alkaline earth metals dissolve in liquid ammonia to give a blue-black coloured solution.
The blue-black colour of the solution is due to the presence of ammoniated electrons.

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true but R is not a correct explanation of A

C

A is true but R is false

D

A is false but R is true
or (E) Both A and R are false.

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • Alkali metals readily dissolve in liquid ammonia to give blue coloured solutions. The blue colour is believed to be due to

    A
    Ammoniated cations
    B
    Ammoniated anions
    C
    Ammoniated electrons
    D
    Ammoniated cation and ammoniated electrons

  • The metal that dissolves in liquid ammonia, giving a dark blue coloured solution is

    A
    Tin
    B
    Lead
    C
    Sodium
    D
    Silver

  • When sodium is dissolved in liquid ammonia, a solution of deep blue colour is obtained. The colour of the solution is due to

    A
    ammoniated electron
    B
    sodium ion
    C
    sodium amide
    D
    ammoniated sodium ion