Which is responsible for the blue colour of alkali metals in liquid ammonia?

Which of the following statements is not ture about the dilute solutions of alkali metals in liquid ammonia ?

Name the non-stoichiometric point defect responsible for the colour of alkali metals halides.

Dilute solutions of alkali metals in liquid NH_(3) are blue. It is the ammoniated electron which is responsible for the blue colour of the solution, and the electrical conductivity is due to the ammoniated cation, [M(NH_(3))_(x)]^(+) as well as the ammoniated electrons, [e(NH_(3))_(y)]^(-) , values of x and y depend on the extent of solvation (by NH_(3) ). Dilute solutions are paramagnetic due to free electrons. What happens if alkali metals is allowed to react with concentrated liquid ammonia?

Name the non-stoichiometric point defect responsible for the colour of alkali metals.

The alkali metals dissolve in ammonia to give a deep blue solution which is conducting in nature. M+(x+y)NH_3rarr[M(NH_3)_x]^(2+)+2[e(NH_3)_y]^(-) Which of the following is not true about the solutions of alkli metals in liquid ammonia ?

Which of the following about solution lf alkali metals in lioquid ammonia is correct ?