Match the entries of column I with appropriate entries of column II and choose the correct option out of the four options (a) , (b) , ( c) ,(d ) given at the end of each questions.
`{:("Column I ",,"Column II"),((A) F,,(p) "Maximum ionization enthalpy "),((B) C1,,(q)" Maximum atomic radius "),(( C) He ,,(r) "Maximum electronegativity "),((D ) Cs ,,(s ) " Maximum negative electron gain enthalpy "):}`

Options

A. `A-q , B- s, C-r , D- p`
B. `A-r , B-s , C-p , D-q`
C. `A-r , B-p , C-q , D-s`
D. `A- q , B- p , C - s , D- r`

Explanation

To solve the matching question between Column I and Column II, we need to analyze each entry in both columns and determine the correct pairings based on the properties of the elements.

### Step-by-Step Solution:

1. **Identify the Elements in Column I:**
- (A) F (Fluorine)
- (B) Cl (Chlorine)
- (C) He (Helium)
- (D) Cs (Cesium)

2. **Identify the Properties in Column II:**
- (p) Maximum ionization enthalpy
- (q) Maximum atomic radius
- (r) Maximum electronegativity
- (s) Maximum negative electron gain enthalpy

3. **Match Each Element with Its Property:**
- **(A) F (Fluorine)**: Fluorine is known for having the highest electronegativity among all elements. Therefore, it matches with (r) "Maximum electronegativity".
- **(B) Cl (Chlorine)**: Chlorine is a halogen and has a high tendency to gain electrons, thus it has a high negative electron gain enthalpy. It matches with (s) "Maximum negative electron gain enthalpy".
- **(C) He (Helium)**: Helium is a noble gas and has a very high ionization enthalpy because it does not want to lose its electrons. It matches with (p) "Maximum ionization enthalpy".
- **(D) Cs (Cesium)**: Cesium is known for having the largest atomic radius among the alkali metals. It matches with (q) "Maximum atomic radius".

4. **Final Matching:**
- (A) F → (r) Maximum electronegativity
- (B) Cl → (s) Maximum negative electron gain enthalpy
- (C) He → (p) Maximum ionization enthalpy
- (D) Cs → (q) Maximum atomic radius

### Conclusion:
The correct matches are:
- A → r
- B → s
- C → p
- D → q