What changes in colour are produced when a basic solution is combined with the China rose indicator?

It turns green

The correct answer is option 2. It turns green.

When a basic solution is combined with the China rose indicator, it turns green.

China rose acts as a natural indicator and changes color based on the acidity or basicity of a solution:

• Acidic solution: Turns dark pink (magenta).
• Basic solution: Turns green.
• Neutral solution: Shows minimal color change (may appear slightly reddish).