Colour of the solution when an alkali or alkaline earth metal dissolves in liquid ammonia

The same question, asked 2 times: 4 May 2023 S1, 25 Apr 2025 S2. Every wording below, oldest first.

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Question 1
4 May 2023 S1
78 $Which of the following colours is developed when alkali metal is dissolved in liquid ammonia?$
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Question 2
25 Apr 2025 S2
81 $Which colour is developed to the solution when alkaline earth metals are dissolved in liquid ammonia?$
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