If P, Q, R and S are elements of 3rd period of p-block in modern periodic table, among these one element is metal and rest are non-metals and their order of electronegativity is given as:
`P lt Q lt R lt S`
In which of the following linkage release of `H^+` is relatively more easier?

Options

A. P-O-H
B. S-O-H
C. Q-O-H
D. R-O-H

Explanation

To solve the problem, we need to analyze the elements P, Q, R, and S, which are from the 3rd period of the p-block in the modern periodic table. We know that one of these elements is a metal and the rest are non-metals. The order of electronegativity is given as P < Q < R < S.

### Step-by-Step Solution:

1. **Identify the Elements in the 3rd Period of the p-block:**
The elements in the 3rd period of the p-block are:
- Aluminium (Al) - Metal
- Silicon (Si) - Metalloid
- Phosphorus (P) - Non-metal
- Sulfur (S) - Non-metal
- Chlorine (Cl) - Non-metal

Since we have one metal and three non-metals, we identify Aluminium as the metal.

2. **Assign the Elements Based on Electronegativity Order:**
Given the order of electronegativity P < Q < R < S, we can assign:
- P = Al (Aluminium)
- Q = P (Phosphorus)
- R = S (Sulfur)
- S = Cl (Chlorine)

This means:
- P (Al) < Q (P) < R (S) < S (Cl)

3. **Understand the Relationship Between Size and H+ Release:**
The ease of releasing H+ ions is generally influenced by the size of the atom. Larger atoms tend to have a weaker hold on their outer electrons, making it easier to release H+ ions.

4. **Compare the Sizes of the Elements:**
Among the elements:
- Aluminium (Al) is larger than Phosphorus (P), Sulfur (S), and Chlorine (Cl).
- Therefore, Aluminium will have a weaker attraction to its outer electrons compared to the other non-metals.

5. **Conclusion:**
Since Aluminium is the largest atom among the given elements, it will release H+ ions more easily than the other elements. Thus, the answer to the question is that the linkage involving Aluminium (P) will release H+ more easily.

### Final Answer:
The element P (Aluminium) will release H+ more easily.