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Solubility in Ammonia (Group 1)

Which of the ...

Question

Which of the following metal(s) in liquid $N H_{3}$ with low concentration is paramagnetic?

A

Na

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B

Cs

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C

K

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D

None of the above.

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Solution

The correct options are
A Na
B Cs
C K
Alkali metals dissolve in liquid ammonia to give blue colour solution because it has low ionisation energy, which is paramagnetic in nature due to the presence of free electrons.

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Solubility in Ammonia (Group 1)

Standard XII Chemistry

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