Which of the following statements are correct ?

Options

A. Cationic detergents have germicidal properties
B. Bacteria can degrade the detergents containing highly branched chains
C. Some synthetic detergents can give foam even in ice cold water
D. Synthtic detergents are not soaps

Explanation

To determine which statements are correct regarding detergents, let's analyze each statement step by step.

### Step 1: Analyzing the First Statement
**Statement:** Ketanic detergents have germicidal properties.

**Analysis:**
- Ketanic detergents are a type of synthetic detergent that carry a positive ionic charge.
- They are known for their cleansing properties and also possess germicidal properties, making them suitable for use in hospitals.

**Conclusion:** This statement is correct.

### Step 2: Analyzing the Second Statement
**Statement:** Bacteria can degrade detergents containing highly branched hydrocarbon chains.

**Analysis:**
- Detergents with highly branched hydrocarbon chains are not easily degraded by bacteria.
- The slow degradation leads to accumulation in the environment, which is why modern detergents are designed with minimal branching to enhance biodegradability.

**Conclusion:** This statement is incorrect.

### Step 3: Analyzing the Third Statement
**Statement:** Some synthetic detergents can form even in ice-cold water.

**Analysis:**
- Certain synthetic detergents are formulated to be effective even in cold water, allowing them to function properly without the need for heating.

**Conclusion:** This statement is correct.

### Step 4: Analyzing the Fourth Statement
**Statement:** Synthetic detergents are not soap.

**Analysis:**
- Synthetic detergents do not contain soap, even though they have similar cleansing properties.
- Soaps are made from natural fats and oils and have a specific structure, while synthetic detergents can be composed of various chemical structures that do not include soap.

**Conclusion:** This statement is correct.

### Final Conclusion
The correct statements are A (Ketanic detergents have germicidal properties), C (Some synthetic detergents can form even in ice-cold water), and D (Synthetic detergents are not soap).

### Summary of Correct Statements
- A: Correct
- B: Incorrect
- C: Correct
- D: Correct