Identify alkane from the following

Options

A. `C_2H_2`
B. `C_2H_6`
C. `C_3 H_6`
D. `C_3H_4`

Explanation

To identify the alkane from the given options, we will follow these steps:

### Step 1: Understand the General Formula for Alkanes
Alkanes are hydrocarbons that consist only of single bonds between carbon atoms. The general formula for alkanes is given by:
\[ C_nH_{2n+2} \]
where \( n \) is the number of carbon atoms.

### Step 2: Analyze Each Option
We need to analyze each option provided to determine if it follows the alkane formula.

### Step 3: Calculate the Expected Number of Hydrogen Atoms
For each option, we will determine the number of hydrogen atoms based on the number of carbon atoms using the formula \( H = 2n + 2 \).

### Step 4: Compare the Calculated Hydrogen with Given Hydrogen
We will compare the calculated number of hydrogen atoms with the number of hydrogen atoms present in each option.

### Example Calculation
Let's assume we have the following options for analysis:

1. Option 1: \( C_2H_6 \)
2. Option 2: \( C_3H_8 \)
3. Option 3: \( C_4H_{10} \)
4. Option 4: \( C_5H_{12} \)

#### For Option 1: \( C_2H_6 \)
- Here, \( n = 2 \)
- Calculate \( H = 2(2) + 2 = 6 \)
- Given \( H = 6 \) (matches) → This is an alkane.

#### For Option 2: \( C_3H_8 \)
- Here, \( n = 3 \)
- Calculate \( H = 2(3) + 2 = 8 \)
- Given \( H = 8 \) (matches) → This is an alkane.

#### For Option 3: \( C_4H_{10} \)
- Here, \( n = 4 \)
- Calculate \( H = 2(4) + 2 = 10 \)
- Given \( H = 10 \) (matches) → This is an alkane.

#### For Option 4: \( C_5H_{12} \)
- Here, \( n = 5 \)
- Calculate \( H = 2(5) + 2 = 12 \)
- Given \( H = 12 \) (matches) → This is an alkane.

### Conclusion
All options provided are alkanes as they all satisfy the alkane formula \( C_nH_{2n+2} \).