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: Understand the reaction of AgCl with sunlight
Silver chloride (AgCl) is a white solid that undergoes a photochemical reaction when exposed to sunlight. In this reaction, AgCl decomposes into silver (Ag) and chlorine gas (Cl\(^2\)). 
Step 2: Analyze the color change
When Silver Chloride (AgCl) is exposed to sunlight, it breaks down into silver metal (which is grey in color) and chlorine gas. This process is a type of photodecomposition, leading to a color change from white to grey. 
Step 3: Conclusion
The correct color change is from white to grey upon exposure to sunlight. \[ \boxed{\text{The color of AgCl changes to grey when exposed to sunlight.}} \]