Match the entries listed in column I with appropriate properties listed in Column II
`{:(,"Column I",,"Column II"),((A),He,(i),"High electron affinity"),((B),Cl,(ii),"Most electropositive element"),((C),Ca,(iii),"Strongest reducing agent"),((D),Li,(iv),"Highest ionization energy"):}`
The correct match of contents in Column I with those in Column II

Options

A. `{:(A-iii,B-i,C-ii,D-iv):}`
B. `{:(A-iv,B-iii,C-ii,D-i):}`
C. `{:(A-ii,B-iv,C-i,D-iii):}`
D. `{:(A-iv,B-i,C-ii,D-iii):}`

Explanation

To solve the problem of matching the elements in Column I with their corresponding properties in Column II, we need to analyze the properties of each element listed in Column I.

### Step 1: Analyze the Elements
1. **He (Helium)**:
- Helium is a noble gas and has the highest ionization energy among all elements because it has a complete outer shell and does not easily lose electrons.

2. **Cl (Chlorine)**:
- Chlorine is a halogen and has a high electron affinity because it readily gains an electron to achieve a stable noble gas configuration. It is known for having one of the highest electron affinities among the elements.

3. **Ca (Calcium)**:
- Calcium is an alkaline earth metal and is not very electronegative. It is not known for high electron affinity or ionization energy. It is more electropositive than chlorine and is not a strong reducing agent compared to lithium.

4. **Li (Lithium)**:
- Lithium is an alkali metal and is known to be a strong reducing agent because it readily loses its outer electron. It is also relatively electropositive.

### Step 2: Match the Elements with Properties
Now that we have analyzed each element, we can match them with the properties listed in Column II:

- **(A) He** matches with **(iv) Highest ionization energy**.
- **(B) Cl** matches with **(i) High electron affinity**.
- **(C) Ca** matches with **(ii) Most electropositive element**.
- **(D) Li** matches with **(iii) Strongest reducing agent**.

### Final Matches:
- (A) He → (iv) Highest ionization energy
- (B) Cl → (i) High electron affinity
- (C) Ca → (ii) Most electropositive element
- (D) Li → (iii) Strongest reducing agent

### Summary of Matches:
- A - iv
- B - i
- C - ii
- D - iii

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