Egg membrane is

Options

A. Semi permeable
B. The shell of it is dissolved by dilute HCl
C. Allows solvents only but not solutes
D. Selectively permeable Plasmolysis

Answer

### Step-by-Step Solution:

1. **Understanding the Egg Membrane**: The egg membrane is a protective layer surrounding the egg. It is important to know its properties to answer the question correctly.

2. **Evaluating the Options**:
- **Option 1: Semi-permeable**: This option states that the egg membrane is semi-permeable. However, the egg membrane does not allow most molecules to pass through, which means this option is incorrect.

- **Option 2: Shell dissolved by dilute HCl**: This option suggests that the shell can be dissolved by dilute hydrochloric acid (HCl). The egg membrane is primarily composed of calcium components, which are not easily dissolved by dilute HCl. Therefore, this option is also incorrect.

- **Option 3: Allows solvents only but not solutes**: This option implies that the egg membrane allows only solvents to pass through while blocking solutes. However, the egg membrane does not permit most solvents either, making this option incorrect.

- **Option 4: Selectively permeable**: This option states that the egg membrane is selectively permeable. This means that it has pores that allow certain molecules to pass through while blocking others. This characteristic is true for the egg membrane, making this option the correct answer.

3. **Conclusion**: After evaluating all the options, the correct answer is that the egg membrane is selectively permeable.

### Final Answer:
The egg membrane is selectively permeable.

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