# In the following sets of reactants which two sets best exhibit the amphoteric character of

Question:

In the following sets of reactants which two sets best exhibit the amphoteric character of $\mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{xH}_{2} \mathrm{O}$ ?

1. 1 and 2

2. 2 and 4

3. 1 and 3

4. 3 and 4

Correct Option: , 3

Solution: