Which of the following statement `(s)` is`//are` correct ?

Options

A. The element which has higher `EA` acts as a strong oxidising agent.
B. The element with higher `EA` has higher `IE`.
C. Along a period halogen has maximum `EA`.
D. The decreasing order of `EA` is `F gt Cl gt Br`.

Answer

To determine which of the statements regarding electron affinity and oxidizing agents are correct, we will analyze each statement step by step.

### Step 1: Analyze the first statement
**Statement:** The element which has higher electron affinity acts as a strong oxidizing agent.

**Analysis:**
- Generally, elements with higher electron affinity tend to be strong oxidizing agents because they can easily gain electrons.
- However, there is an exception with fluorine and chlorine. Chlorine has a higher electron affinity than fluorine, but fluorine is a stronger oxidizing agent than chlorine.
- Therefore, while the statement is generally true, it has exceptions.

**Conclusion:** This statement is considered correct in general, but with exceptions.

### Step 2: Analyze the second statement
**Statement:** The element with higher electron affinity has higher ionization enthalpy.

**Analysis:**
- Higher electron affinity is typically associated with smaller atomic size, which also leads to higher ionization enthalpy.
- As we move across a period, both electron affinity and ionization enthalpy tend to increase.
- Thus, this statement holds true in general.

**Conclusion:** This statement is correct.

### Step 3: Analyze the third statement
**Statement:** Along a period, halogen has maximum electron affinity.

**Analysis:**
- Halogens indeed have the highest electron affinity among all groups in the periodic table.
- As we move from left to right across a period, the tendency to gain electrons increases, confirming that halogens have maximum electron affinity.

**Conclusion:** This statement is correct.

### Step 4: Analyze the fourth statement
**Statement:** The decreasing order of electron affinity is Fluorine, Chlorine, then Bromine.

**Analysis:**
- The correct order of electron affinity for halogens is Chlorine > Fluorine > Bromine > Iodine.
- Fluorine has a lower electron affinity than chlorine due to increased inter-electronic repulsion in its small size.
- Therefore, this statement is incorrect.

**Conclusion:** This statement is incorrect.

### Final Conclusion:
The correct statements are:
1. The element which has higher electron affinity acts as a strong oxidizing agent (with exceptions).
2. The element with higher electron affinity has higher ionization enthalpy.
3. Along a period, halogen has maximum electron affinity.

### Correct Options:
- Option 1: Correct
- Option 2: Correct
- Option 3: Correct
- Option 4: Incorrect