Give IUPAC name of : `Br_(3)C-CHO`.

Explanation

To determine the IUPAC name of the compound \( \text{Br}_3\text{C-CHO} \), we can follow these steps:

### Step 1: Identify the Parent Chain
The compound has two carbon atoms, with one carbon being part of the aldehyde functional group (CHO). The carbon chain is therefore a two-carbon chain.

### Step 2: Number the Carbon Chain
We need to number the carbon chain starting from the end nearest to the aldehyde group to ensure that the aldehyde gets the lowest possible number. The numbering will be as follows:
- Carbon 1: The carbon of the aldehyde group (CHO)
- Carbon 2: The carbon connected to the three bromine atoms

### Step 3: Identify the Substituents
At carbon 2, there are three bromine atoms attached. The prefix for bromine is "bromo". Since there are three bromine atoms, we use the prefix "tribromo".

### Step 4: Combine the Information
Now we can combine the information:
- The main chain is ethane (since it has two carbons).
- The substituent is tribromo at the second carbon.
- The suffix for the aldehyde is "al".

### Step 5: Write the Full IUPAC Name
Putting it all together, the IUPAC name of the compound is:
**2,2,2-tribromoethanal**

### Final Answer
The IUPAC name of \( \text{Br}_3\text{C-CHO} \) is **2,2,2-tribromoethanal**.

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