निम्नलिखित आयनो को इलेक्ट्रॉन ग्रहण करने की बढ़ती क्षमता के क्रम में लिखो । `H^(+),Mg^(2+),K^(+),Ag^(+),Zn^(2+)` तथा `Cu^(2+)`

Options

A. `Ag^(+) gt H^(+) gt Zn^(2+) gt Mg^(2+) gt K^(+)`
B. `H^(+) gt Zn^(2+) gt Mg^(2+) gt K^(+) gt Ag^(+)`
C. `K^(+)gtMg^(2+)gt Zn^(2+)gt H^(+) gt Ag^(+)`
D. `Mg^(2+) gt Zn^(2+) gt K^(+) gt H^(+)`

Explanation

To determine the increasing order of electron affinity for the given ions: \( H^+, Mg^{2+}, K^+, Ag^+, Zn^{2+}, Cu^{2+} \), we need to analyze the ability of each ion to accept electrons. Here’s a step-by-step solution:

### Step 1: Understand Electron Affinity
Electron affinity refers to the tendency of an atom or ion to accept an electron. Generally, nonmetals have higher electron affinities compared to metals. Among metals, the ability to accept electrons decreases as we move down a group in the periodic table.

### Step 2: Analyze Each Ion
- **\( K^+ \)** (Potassium ion): Being an alkali metal, it has a low tendency to accept electrons.
- **\( Mg^{2+} \)** (Magnesium ion): As a group 2 metal, it has a moderate tendency to accept electrons, but less than transition metals.
- **\( Zn^{2+} \)** (Zinc ion): A transition metal, it has a higher electron affinity than alkali and alkaline earth metals.
- **\( Ag^+ \)** (Silver ion): Another transition metal, it has a relatively high electron affinity.
- **\( Cu^{2+} \)** (Copper ion): Also a transition metal, it typically has a higher electron affinity than both zinc and silver.
- **\( H^+ \)** (Hydrogen ion): Hydrogen has a high electron affinity as it seeks to gain an electron to achieve a stable noble gas configuration.

### Step 3: Arrange the Ions in Increasing Order of Electron Affinity
Based on the analysis:
1. \( K^+ \) (lowest electron affinity)
2. \( Mg^{2+} \)
3. \( Zn^{2+} \)
4. \( Ag^+ \)
5. \( Cu^{2+} \)
6. \( H^+ \) (highest electron affinity)

### Final Order
The increasing order of electron affinity for the given ions is:
\[ K^+ < Mg^{2+} < Zn^{2+} < Ag^+ < Cu^{2+} < H^+ \]