Colour of basic copper carbonate is

Options

A. blue
B. yellow
C. red
D. green

Explanation

To determine the color of basic copper carbonate, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Compound**: Basic copper carbonate is a compound that contains copper, carbonate, and hydroxide ions. The formula for copper carbonate is CuCO₃. Since it is basic, it includes copper hydroxide (Cu(OH)₂) as well.

2. **Write the Formula**: The formula for basic copper carbonate can be represented as CuCO₃·Cu(OH)₂ or simply as Cu₂(OH)₂CO₃, indicating that it contains both carbonate and hydroxide groups.

3. **Determine the Color**: Basic copper carbonate is known for its characteristic color. It is important to recall the common colors associated with copper compounds.

4. **Conclusion**: Basic copper carbonate is recognized for its green color. Therefore, the answer to the question is that the color of basic copper carbonate is green.

### Final Answer:
The color of basic copper carbonate is **green**.

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