Question

What color does Silver Chloride (AgCl) turn upon exposure to sunlight?

• A. Grey
• B. White
• C. Yellow
• D. Brown

Hint:

Photochemical reactions, such as the decomposition of AgCl, result in a visible color change when the product, like silver metal, is formed.

Answer 1

The Correct Option is A

Step 1: AgCl's Reaction to Sunlight
Silver chloride (AgCl), a white solid, reacts photochemically in sunlight, decomposing into silver (Ag) and chlorine gas (Cl\(^2\)).
Step 2: Color Change Analysis
Sunlight exposure causes Silver Chloride (AgCl) to break down into grey silver metal and chlorine gas, a photodecomposition resulting in a white-to-grey color change. 
Step 3: Conclusion
The color changes from white to grey when exposed to sunlight. \[ \boxed{\text{The color of AgCl changes to grey when exposed to sunlight.}} \]