Assertion : 2s orbital is spherically symmetrical .
Reason: s-orbital is sperically dependence.

Options

A. Assertion and reason both are correct statements and reason is correct explanation for assertion.
B. Assertion and reason both are correct statements but reason is not correct explanation for assertion.
C. Assertion is correct statement but reason is wrong statement.
D. Assertion is wrong statement but reason is correct statement.

Answer

To solve the question regarding the assertion and reason about the 2s orbital, we will break down the concepts step by step.

### Step 1: Understanding the Assertion
The assertion states that "2s orbital is spherically symmetrical."

**Explanation**:
- The 2s orbital is a type of s orbital, which means it has a spherical shape. All s orbitals, including the 2s orbital, are characterized by their spherical symmetry. This means that the probability density of finding an electron is the same in all directions from the nucleus.

**Hint**: Remember that all s orbitals (including 1s, 2s, etc.) are spherical in shape.

### Step 2: Understanding the Reason
The reason states that "s-orbital is spherically dependent."

**Explanation**:
- The term "spherically dependent" refers to the fact that the s orbitals do not have any directional characteristics; they are the same in all directions. This is due to their angular momentum quantum number (l) being 0, which leads to a constant angular wave function. Therefore, the shape of the s orbital is determined solely by the radial distance (r) from the nucleus, making it dependent on the radius rather than on angles.

**Hint**: Recall that the angular momentum quantum number (l) for s orbitals is always 0, indicating no angular dependence.

### Step 3: Evaluating the Assertion and Reason
Now, we need to evaluate whether both the assertion and the reason are correct and if the reason correctly explains the assertion.

1. **Assertion**: Correct - The 2s orbital is indeed spherically symmetrical.
2. **Reason**: Correct - The s orbital is spherically dependent, meaning it is non-directional and symmetrical in all directions.

### Step 4: Conclusion
Since both the assertion and the reason are correct, and the reason provides a correct explanation for the assertion, we conclude that:

- **Both the assertion and reason are correct, and the reason is the correct explanation for the assertion.**

### Final Answer:
- **Assertion**: True
- **Reason**: True
- **Explanation**: The reason correctly explains the assertion.