The set in which compounds have different nature is:

Question

Canvas Classes · Accepted Answer

Strategy:
 Identify the chemical nature (acidic, basic, or amphoteric) of each hydroxide/acid. Compare the members within each set for differences.

Step 1: Analyze each set
- (1)  and : Both are strictly acidic.
- (2)  and : Boric acid is acidic, whereas Aluminum hydroxide is amphoteric. These are different.
- (3)  and : Both are strong bases.
- (4)  and : Both are shared members of the amphoteric group.

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