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Solubility in Ammonia (Group 1)

In which regi...

Question

In which region of light the ammoniated electrons in the solution absorb energy?

A

Infrared

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B

Ultraviolet

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C

Visible

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D

All of the above.

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Solution

The correct option is C Visible
The ammoniated electrons in the solution absorb energy in the visible region of light, Imparting blue color to the solution

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Similar questions

When sodium is dissolved in lequid 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

All alkali metals dissolve in anhydrous liquid ammonia to give a blue color solution. It is the ammoniated electron which is responsible for the blue color of the solution, and the electrical conductivity is due to ammoniated cation,

[M (N H_{3})_{x}]^{+}

as well as the ammoniated electron,

[e (N H_{3})_{y}]^{-}

, values of x and y depend on the extent of solvation by

N H_{3}

. Dilute solutions are paramagnetic due to free ammoniated electrons.

What happens if alkali metals are allowed to react with concentrated liquid ammonia?

Read the following passage and answer the questions at the end of it.

Dilute solution of alkali metals in liquied

N H_{3}

is blue. It is the ammoniated electron which is responsible for the blue color of the solution and the electrical conductivity is due to the ammoniated cation,

[M (N H_{3})_{x}]^{+}

as well as the ammoniated electron,

[e (N H_{3})_{y}]^{-}

, values of x and y depend on the extent of solvation

(b y N H_{3})

. Dilute solutions are paramagnetic due to free electrons.

What happens if alkali metal is allowed to react with concentrated ammonia solution?

Q. Ammoniated solutions of alkali metals are reducing agents due to the presence of free or solvated electrons and can reduce :

Q. The chlorophyll absorb visible light in the region of which wavelength?

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Solubility in Ammonia (Group 1)

Standard XII Chemistry

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