The `IUPAC` name of the compound `Br(Cl)CH.CF_(3)` is

Options

A. haloethane
B. `1,1,1-`trifluoro`-2-`bromo`-2-`chloroethane
C. `2-`bromo`-2-`chloro`-1,1,1-`trifluoroethane
D. `1-`bromo`-1-`chloro`-2,2,2-`trifloroethane

Explanation

To determine the IUPAC name of the compound Br(Cl)CH.CF₃, we can follow these steps:

### Step 1: Identify the Structure
The given compound can be interpreted as having a carbon chain with two carbon atoms. One carbon has a bromine (Br) and chlorine (Cl) substituent, while the other carbon has three fluorine (F) substituents.

### Step 2: Draw the Structure
Draw the structure based on the description:
- The first carbon (C1) has a bromine and chlorine attached.
- The second carbon (C2) has three fluorine atoms attached.

### Step 3: Count the Carbon Atoms
There are two carbon atoms in the compound, which indicates that the base name will be derived from ethane (C2H6).

### Step 4: Determine the Substituents
The substituents are:
- Bromo (Br)
- Chloro (Cl)
- Trifluoro (CF₃)

### Step 5: Number the Carbon Atoms
When numbering the carbon chain, we want to give the substituents the lowest possible numbers.
- If we number from the end where the bromine is attached, we get:
- C1: Br and Cl
- C2: CF₃

This gives us the following numbering:
- C1: 1-bromo, 1-chloro
- C2: 2-trifluoro

### Step 6: Arrange the Substituents Alphabetically
According to IUPAC naming conventions, substituents are listed in alphabetical order regardless of their position:
- Bromo (Br) comes first
- Chloro (Cl) comes next
- Trifluoro (F) comes last

### Step 7: Combine the Information
Putting it all together, we get:
- The full name is: **1-bromo-1-chloro-2-trifluoroethane**.

### Final Answer
The IUPAC name of the compound Br(Cl)CH.CF₃ is **1-bromo-1-chloro-2-trifluoroethane**.

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