Assertion :- First electrons affinity fo all element is positive.
Reason :- Successive electron affinity of all elements is negative

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True, but the Reason is False.
D. If both Assertion & Reason are false

Answer

To analyze the assertion and reason provided in the question, we will break down the concepts of electron affinity and evaluate the statements one by one.

### Step-by-Step Solution:

1. **Understanding Electron Affinity**:
- Electron affinity is the amount of energy released when an electron is added to a neutral atom in the gas phase. A negative value indicates that energy is released, while a positive value indicates that energy must be supplied to add an electron.

2. **Evaluating the Assertion**:
- The assertion states: "First electron affinity of all elements is positive."
- This statement is **incorrect**. For most elements, the first electron affinity is negative, meaning energy is released when an electron is added. For example, when fluorine gains an electron, it releases energy, resulting in a negative electron affinity.

3. **Evaluating the Reason**:
- The reason states: "Successive electron affinity of all elements is negative."
- This statement is also **incorrect**. While the first electron affinity is generally negative, the second electron affinity (and successive ones) often requires energy input due to electron-electron repulsion. Therefore, successive electron affinities can be positive for many elements.

4. **Conclusion**:
- Both the assertion and the reason are incorrect. The first electron affinity for most elements is negative, and successive electron affinities are generally positive due to repulsion between electrons.

### Final Answer:
- **Assertion**: Incorrect
- **Reason**: Incorrect
- Therefore, the overall statement is false.