Which statement(s) is/are correct?

Options

A. `Al` acts as a reducing agent
B. `Al` does not react with steam even at higher temperature
C. `Al` forms a number of alloy with other metals
D. `Al` is ionic in all its compounds

Explanation

To determine which statements about aluminum are correct, let's analyze each statement step by step.

### Step 1: Analyze Statement A
**Statement A:** "Aluminium acts as a reducing agent."

- **Explanation:** Aluminum is a metal with a strong tendency to lose electrons, making it a good reducing agent. It can reduce other metals by donating electrons and can easily remove oxygen from less electropositive metals.

**Conclusion for Statement A:** True

### Step 2: Analyze Statement B
**Statement B:** "Aluminium does not react with steam even at higher temperatures."

- **Explanation:** Generally, aluminum does not react with steam at high temperatures due to the formation of a protective oxide layer on its surface, which prevents further reaction.

**Conclusion for Statement B:** True

### Step 3: Analyze Statement C
**Statement C:** "Aluminium forms a number of alloys with other metals."

- **Explanation:** Aluminum is known for its ability to form alloys with various metals, enhancing its properties for different applications. This is a well-established fact in metallurgy.

**Conclusion for Statement C:** True

### Step 4: Analyze Statement D
**Statement D:** "Aluminium is ionic in all its compounds."

- **Explanation:** This statement is incorrect. While aluminum can form ionic compounds, particularly in its hydrated state (like hydrated AlCl3), it predominantly forms covalent compounds in its anhydrous state (like anhydrous AlCl3). Therefore, it is not accurate to say that aluminum is ionic in all its compounds.

**Conclusion for Statement D:** False

### Final Conclusion
The correct statements are A, B, and C. Statement D is incorrect.

### Summary of Correct Statements:
- A: True
- B: True
- C: True
- D: False