Question

As the size of gold particle increases, the colour of solution varies as :

• A. Purple$\to$ Blue$\to$ Golden$\to$ Red
• B. Golden$\to$ Red$\to$ Purple$\to$ Blue
• C. Red$\to$ Purple$\to$ Blue$\to$ Golden
• D. Blue$\to$ Purple$\to$ Golden$\to$ Red

Answer 1

The correct option is C Red$\to$ Purple$\to$ Blue$\to$ Golden

As the size of gold particle increases the colour of solution varies as Red $\to$ Purple $\to$ Blue $\to$ Golden.
Thus, the colour of solution depends on the size of gold particles.