When pent-4-en-1-ol is treated with aqueous `Br_(2)//O^(-)H`, a cyclic bromo ether is rather than the expected bromohydrin. Propose a sutiable mechanism for the above.

Explanation

To understand the formation of a cyclic bromoether from pent-4-en-1-ol when treated with aqueous bromine in a basic medium, we can propose a step-by-step mechanism as follows:

### Step 1: Structure of Pent-4-en-1-ol
Pent-4-en-1-ol has the following structure:
- It has five carbon atoms (C1 to C5).
- An -OH group is attached to the first carbon (C1).
- A double bond is present between the fourth carbon (C4) and the fifth carbon (C5).

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