Choose the correct statement from these give below

Options

A. Chlorophyll-a is soluble in petroleum ether and shows maximum absorption peak at 453 nm and 642 nm
B. In chlorophyll-b, -`CH_(3)` replaces -CHO at 3-C of chlorophyll-a
C. Chlorophyll-b is soluble in methyl alcohol and shows maximum absorption peak in 429 nm and 660 nm
D. For biosynthesis of chlorophyll, raw materials required are Succinyl Co-A and glycine

Answer

To solve the question of choosing the correct statement regarding chlorophyll, we will systematically analyze each of the provided statements based on the information given in the video transcript.

### Step-by-Step Solution:

1. **Analyze the First Statement:**
- The statement claims that "Chlorophyll A is soluble in petroleum ether."
- According to the video, chlorophyll A is indeed soluble in petroleum ether and other organic solvents. However, it mentions that the maximum absorption peak is incorrectly stated as 453 nm, while it should be around 400 nm. Thus, this statement is **incorrect**.

2. **Analyze the Second Statement:**
- The statement says, "In chlorophyll B, CH3 replaces CHO group at 3rd carbon of chlorophyll A."
- The video clarifies that this statement is reversed. Chlorophyll A has a CH3 group at the 3rd carbon, while chlorophyll B has a CHO group. Therefore, this statement is also **incorrect**.

3. **Analyze the Third Statement:**
- The statement claims, "Chlorophyll B is soluble in methyl alcohol."
- The video indicates that chlorophyll B is practically insoluble in methyl alcohol. Therefore, this statement is **incorrect**.

4. **Analyze the Fourth Statement:**
- The statement states, "For biosynthesis of chlorophyll, the raw materials required are succinyl coenzyme A and glycine."
- The video confirms that this statement is correct. Succinyl coenzyme A and glycine are indeed the raw materials needed for chlorophyll biosynthesis, leading to the formation of protochlorophyll, which then converts to chlorophyll upon exposure to light.

### Conclusion:
- The correct statement among the options provided is the **fourth statement** regarding the biosynthesis of chlorophyll.

### Final Answer:
The correct statement is: **"For biosynthesis of chlorophyll, the raw materials required are succinyl coenzyme A and glycine."**

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