If `CH_(4)` is known as methane, then `C_(9)H_(20)` is known as

Options

A. Hexane
B. Nonane
C. Octane
D. Butane

Answer

To determine the name of the compound \( C_9H_{20} \), we can follow these steps:

### Step 1: Identify the type of hydrocarbon
The given compound \( C_9H_{20} \) is an alkane because it follows the general formula for alkanes, which is \( C_nH_{2n+2} \).

### Step 2: Calculate the number of carbon atoms
In the formula \( C_9H_{20} \), the number of carbon atoms \( n \) is 9.

### Step 3: Determine the corresponding prefix for the number of carbon atoms
For alkanes, we use specific prefixes based on the number of carbon atoms:
- 1 carbon: Meth-
- 2 carbons: Eth-
- 3 carbons: Prop-
- 4 carbons: But-
- 5 carbons: Pent-
- 6 carbons: Hex-
- 7 carbons: Hept-
- 8 carbons: Oct-
- 9 carbons: Non-

Since \( C_9H_{20} \) has 9 carbon atoms, the prefix is "Non-".

### Step 4: Add the suffix for alkanes
Alkanes are named with the suffix "-ane". Therefore, combining the prefix and the suffix, we get "Non-ane".

### Conclusion
Thus, \( C_9H_{20} \) is known as **nonane**.

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