`Fe(OH)_(3)darr+NaOH(excess)to`No reaction

Options

A. For precipitate formation reaction
B. For precipitate dissolution reaction
C. For precipitate exchange reaction
D. For no reaction

Answer

To solve the question regarding the reaction of Fe(OH)₃ with excess NaOH, we will analyze the situation step by step.

### Step-by-Step Solution:

1. **Identify the Reactants**:
The reactants in the reaction are Iron(III) hydroxide, Fe(OH)₃, and sodium hydroxide, NaOH.

2. **Understand the Nature of the Reactants**:
Fe(OH)₃ is a precipitate, which means it is an insoluble compound that can settle at the bottom of a container. NaOH is a strong base and is soluble in water.

3. **Consider the Reaction Conditions**:
The question states that NaOH is in excess. This means there is more NaOH present than is needed to react with Fe(OH)₃.

4. **Analyze Possible Reactions**:
In general, when a strong base like NaOH is added to a precipitate like Fe(OH)₃, one might expect a reaction where the precipitate could dissolve or form a complex. However, in this case, the question indicates that there is "no reaction."

5. **Conclusion**:
Since there is no new product formed and the Fe(OH)₃ does not dissolve in excess NaOH, we conclude that this is a case of "no reaction." The precipitate remains unchanged, and no new compounds are created.

### Final Answer:
The reaction of Fe(OH)₃ with excess NaOH results in **no reaction**.

---