`C_(4)H_(10)O` has ____metamers. One of them is diethyl ether while the others are_____and_____.

Explanation

To determine the number of metamers for the compound with the molecular formula \( C_4H_{10}O \), we need to analyze the possible structural isomers that can exist based on the connectivity of the atoms.

### Step-by-Step Solution:

1. **Understanding Metamerism**: Metamerism occurs when two or more compounds have the same molecular formula but differ in the arrangement of atoms around a functional group. In this case, we are looking for ethers with the formula \( C_4H_{10}O \).

2. **Identifying the Functional Group**: The functional group in this case is the ether group (R-O-R'). We need to find different combinations of alkyl groups (R and R') that can form ethers.

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