According to Lewis concept of acids and bases, ethers are

Options

A. Neutral
B. Acidic
C. Basic
D. Amphoteric

Answer

To determine the nature of ethers according to the Lewis concept of acids and bases, we can follow these steps:

### Step 1: Understand the Lewis Concept of Acids and Bases
- Lewis acids are defined as substances that can accept an electron pair, while Lewis bases are substances that can donate an electron pair.

**Hint:** Remember that Lewis acids are electron pair acceptors, and Lewis bases are electron pair donors.

### Step 2: Identify the Structure of Ethers
- Ethers have the general structure R-O-R', where R and R' are alkyl groups. The oxygen atom in the ether has two lone pairs of electrons.

**Hint:** Focus on the functional groups in ethers and their ability to donate electrons.

### Step 3: Analyze the Lone Pairs on Oxygen
- The oxygen atom in ethers has two lone pairs of electrons. This allows the ether to donate one of these lone pairs to a Lewis acid.

**Hint:** Consider how the presence of lone pairs on the oxygen atom affects the reactivity of ethers.

### Step 4: Conclude the Nature of Ethers
- Since ethers can donate their lone pair of electrons to a Lewis acid, they act as Lewis bases. Therefore, according to the Lewis concept of acids and bases, ethers are classified as basic in nature.

**Hint:** Recall that the ability to donate electrons is a key characteristic of Lewis bases.

### Final Answer
According to the Lewis concept of acids and bases, ethers are basic in nature. Thus, the correct option is the third one.