Why the silver nitrate solution is always kept in the brown bottle in the laboratory?

The correct answer is: It decomposes in the presence of light

• Silver nitrate is a highly reactive compound. When exposed to light, it hydrolyzes to brownish-black silver oxide and nitric acid. This means that silver nitrate is sensitive to light.
•  Brown bottle prevents light from passing through. They do not let light through. ・When silver nitrate is stored in a transparent glass bottle, it reacts with light and hydrolyzes.
• However, if you store silver nitrate in the dark, you can use a dark brown bottle, also known as an amber bottle.
• Therefore, Silver nitrate solutions are stored in brown bottles in the laboratory because brown bottles block the passage of light.