Pick out the correct statement (s) among the following.

Options

A. An alloy is a homogenous mixture of two more metals.
B. An alloy may contain a non metal in addition to metals.
C. Alloys possess better physical properties than the metals.
D. All the above.

Explanation

To solve the question, we need to analyze each of the statements provided and determine which ones are correct regarding alloys.

### Step-by-Step Solution:

1. **Understanding Alloys**:
- An alloy is defined as a homogeneous mixture of two or more metals or a metal with non-metals. This means that the components of the alloy are uniformly distributed.

2. **Evaluating the Statements**:
- **Statement 1**: "An alloy is a homogeneous mixture of 2 or more metals."
- This statement is partially correct. While alloys can be made from two or more metals, they can also include non-metals. Therefore, this statement alone is not entirely accurate.

- **Statement 2**: "An alloy may contain a non-metal in addition to metals."
- This statement is correct. For example, steel is an alloy of iron (a metal) and carbon (a non-metal). Therefore, this statement is valid.

- **Statement 3**: "Alloy possesses better physical properties than the metals."
- This statement is also correct. Alloys are often designed to enhance certain physical properties, such as strength, corrosion resistance, and durability. For instance, steel (an alloy) is stronger and more resistant to corrosion than pure iron.

- **Statement 4**: "All of the above."
- Since Statement 2 and Statement 3 are correct, and Statement 1 is partially correct (but does not exclude the possibility of non-metals), we can conclude that Statement 4, which claims that all previous statements are correct, is also valid.

3. **Conclusion**:
- All statements (1, 2, and 3) are correct in the context of alloys, making Statement 4 ("All of the above") the correct answer.

### Final Answer:
The correct statements are:
- Statement 2: An alloy may contain a non-metal in addition to metals.
- Statement 3: Alloy possesses better physical properties than the metals.
- Therefore, Statement 4: All of the above is also correct.