The solid carbon dioxide is commonly called ……….

Explanation

**Step-by-Step Solution:**

1. **Identify the Substance**: The question asks for the common name of solid carbon dioxide.

2. **Recall the Properties**: Solid carbon dioxide has unique properties. One important property is that it sublimates, meaning it changes from a solid to a gas without becoming liquid.

3. **Common Name**: Due to its sublimation property, solid carbon dioxide is commonly known as "dry ice."

4. **Reason for the Name**: The term "dry ice" is used because it does not leave any wet residue when it sublimates; it turns directly into gas without forming liquid water.

5. **Conclusion**: Therefore, the solid carbon dioxide is commonly called dry ice.

**Final Answer**: Dry ice

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