The hydrolysis of acid anhydride produces..............

Answer

To solve the question regarding the hydrolysis of acid anhydride, we will follow these steps:

### Step 1: Understand Acid Anhydrides
An acid anhydride is a compound formed by the removal of a water molecule from an acid. The general formula of an acid anhydride can be represented as R-C(=O)-O-C(=O)-R', where R and R' are hydrocarbon groups.

**Hint:** Remember that anhydrides are derived from acids by the loss of water.

### Step 2: Hydrolysis Reaction
When an acid anhydride undergoes hydrolysis, it reacts with water. The reaction can be represented as follows:

\[ \text{R-C(=O)-O-C(=O)-R'} + \text{H}_2\text{O} \rightarrow \text{R-C(=O)-OH} + \text{R'-C(=O)-OH} \]

This indicates that one molecule of water reacts with the acid anhydride.

**Hint:** Hydrolysis involves the addition of water to break the anhydride bond.

### Step 3: Formation of Carboxylic Acids
The products of this hydrolysis reaction are two carboxylic acids. Each part of the anhydride contributes to the formation of a carboxylic acid. The resulting products can be represented as:

1. R-C(=O)-OH (Carboxylic acid from R)
2. R'-C(=O)-OH (Carboxylic acid from R')

Thus, the hydrolysis of one molecule of acid anhydride produces two molecules of carboxylic acids.

**Hint:** Identify the functional groups in the products to confirm they are carboxylic acids.

### Conclusion
In summary, the hydrolysis of an acid anhydride produces two carboxylic acids.

**Final Answer:** The hydrolysis of acid anhydride produces two carboxylic acids.

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