Which of the following is an example of liquid dishwasing detergent ?

Options

A. `CH_(3)(CH_(2))_(10) - CH_(2)OSO_(3)^(-)Na^(+)`
B.
C.
D.

Explanation

To determine which of the given options is an example of a liquid dishwashing detergent, we need to analyze each option based on their chemical structure and classification as detergents.

### Step-by-Step Solution:

1. **Identify the Options:**
- Option 1: CH3CH2(CH2)10 × CH2OSO3-NA+
- Option 2: C9H19 attached to a phenyl ring which is further attached to O CH2CH2O N times CH2CH2OH
- Option 3: CH3 attached to a phenyl ring which is further attached to SO3-NA+
- Option 4: CH3(CH2)15 attached to nitrogen which is further attached to three methyl groups, with a positive charge attached to a negatively charged bromide ion.

2. **Classify Each Option:**
- **Option 1:** Contains a sulfate group (SO3-), indicating it is an anionic detergent.
- **Option 2:** Does not contain any ion in its structure, suggesting it is a non-ionic detergent.
- **Option 3:** Contains a sulfonate group (SO3-), indicating it is also an anionic detergent.
- **Option 4:** Contains a quaternary ammonium structure, indicating it is a cationic detergent.

3. **Determine the Type of Detergent:**
- Liquid dishwashing detergents are generally non-ionic. This is because non-ionic detergents are effective in removing grease and oil without forming unwanted ions in solution.

4. **Select the Correct Option:**
- Based on the classification, **Option 2** is identified as a non-ionic detergent. Therefore, it is the correct answer for a liquid dishwashing detergent.

5. **Conclusion:**
- The answer to the question "Which of the following is an example of liquid dishwashing detergent?" is **Option 2**.