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

Options

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

Explanation

To solve the question regarding the deep blue color obtained when sodium is dissolved in liquid ammonia, we can follow these steps:

### Step 1: Understanding the Reaction
When sodium (Na) is added to liquid ammonia (NH₃), it undergoes a reaction. Sodium donates its electrons to the ammonia molecules.

### Step 2: Formation of Ammoniated Electrons
The reaction leads to the formation of ammoniated electrons. These are free electrons that are surrounded by ammonia molecules, which stabilize them. The presence of these ammoniated electrons is crucial for the color observed.

### Step 3: Color of the Solution
The deep blue color of the solution is primarily due to these ammoniated electrons. When these electrons are excited, they can absorb certain wavelengths of light and emit energy in the form of light, which appears blue to the human eye.

### Step 4: Conclusion
Thus, the deep blue color of the solution is attributed to the presence of ammoniated electrons, which are responsible for the absorption and emission of light in the blue region of the spectrum.

### Final Answer
The color of the solution is due to **ammoniated electrons**.

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