Incorrect statement among the following is

Options

A. PHBV undergoes bacterial degradation in the environment
B. Nylon 2-nylon 6 is a copolymer of glycine and amino caproic acid
C. Nylon 2-nylon 6 is a non-biodigradable polymer
D. PHBV is used in orthopaedic devices

Answer

To solve the question regarding the incorrect statement among the given options, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Understanding PHBV**:
- PHBV stands for poly-beta-hydroxybutyrate-co-beta-hydroxyvalerate. It is a thermoplastic copolymer made from 3-hydroxybutanoic acid and 3-hydroxypentanoic acid.
- PHBV is known for its biodegradability and is used in various applications including packaging and orthopedic devices.

**Hint**: Remember the full form of PHBV and its applications.

2. **Analyzing Option 1**:
- The statement claims that "PHBV undergoes bacterial degradation in the environment."
- This statement is **correct** as PHBV is biodegradable and can be degraded by bacteria.

**Hint**: Consider the environmental impact of polymers like PHBV.

3. **Analyzing Option 2**:
- The statement claims that "nylon 2 nylon 6 is a copolymer of glycerin and amino caproic acid."
- This statement is **correct**. Nylon 2, nylon 6 is indeed a copolymer formed from amino caproic acid and other components.

**Hint**: Focus on the components that make up nylon 2, nylon 6.

4. **Analyzing Option 3**:
- The statement claims that "nylon 2 nylon 6 is a non-biodegradable polymer."
- This statement is **incorrect**. Nylon 2, nylon 6 is a biodegradable polymer, which contradicts the statement.

**Hint**: Recall the properties of nylon 2, nylon 6 regarding biodegradability.

5. **Analyzing Option 4**:
- The statement claims that "PHBV is used in orthopedic devices."
- This statement is **correct**. PHBV is indeed used in orthopedic applications due to its biocompatibility.

**Hint**: Think about the medical applications of biodegradable polymers.

### Conclusion:
After analyzing all the options, the incorrect statement is found in **Option 3**, which states that nylon 2 nylon 6 is a non-biodegradable polymer.

### Final Answer:
The incorrect statement among the following is: **Option 3 - Nylon 2 nylon 6 is a non-biodegradable polymer.**