which of the following statement is incorrect about DDT?

Options

A. DDT is a pesticide , which is an organchlorine .
B. It is lipophilic and non-Biodegadable .
C. Milk is a good carrier of DDT
D. DDT does not undergo bioconcentration when it enters in food chain .

Answer

To determine which statement about DDT (Dichlorodiphenyltrichloroethane) is incorrect, let's analyze each statement step by step:

1. **Statement 1: DDT is a pesticide which is an organochlorine.**
- DDT is indeed a pesticide and belongs to the organochlorine group of chemicals. This statement is correct.

2. **Statement 2: It is lipophilic and non-biodegradable.**
- DDT is known to be lipophilic, meaning it has an affinity for fats and oils, and it is also non-biodegradable, meaning it cannot be broken down by natural processes. This statement is correct.

3. **Statement 3: Milk is a good carrier of DDT.**
- DDT can accumulate in fatty tissues and can be found in milk, making milk a potential carrier for DDT. This statement is correct.

4. **Statement 4: DDT does not undergo bioconcentration when it enters the food chain.**
- This statement is incorrect. DDT does undergo bioconcentration, meaning its concentration increases as it moves up the food chain. Organisms at higher trophic levels accumulate higher concentrations of DDT, leading to biomagnification.

Based on the analysis, the incorrect statement about DDT is:

**Answer: Statement 4 is incorrect. DDT does undergo bioconcentration when it enters the food chain.**