Non-metals are generally non-malleable and non-ductile.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Terms:**
- First, let's define the terms "malleable" and "ductile."
- Malleability refers to the ability of a substance to be hammered or rolled into thin sheets without breaking.
- Ductility refers to the ability of a substance to be stretched into thin wires.

2. **Identifying Non-Metals:**
- Non-metals are elements that typically lack the properties of metals. Common examples include oxygen, sulfur, and carbon.

3. **Analyzing the Statement:**
- The statement claims that non-metals are generally non-malleable and non-ductile.
- This means that non-metals cannot be easily shaped into thin sheets or stretched into wires.

4. **Evaluating Malleability and Ductility in Non-Metals:**
- Non-metals are generally brittle. When subjected to force, they tend to break rather than deform.
- For example, if you try to hammer a piece of sulfur, it will shatter instead of flattening out into a sheet.

5. **Conclusion:**
- Since non-metals do not exhibit the properties of malleability and ductility, the statement "non-metals are generally non-malleable and non-ductile" is true.

**Final Answer:**
The statement is true. Non-metals are generally non-malleable and non-ductile.

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