Which of the following species is not electrphilic in nature?

Options

A. `BH_(3)`
B. `H_(3)overset(o+)O`
C. `overset(o+)(N)O_(2)`
D. `overset(o+)(C )l`

Answer

To determine which of the following species is not electrophilic in nature, we will analyze each species provided in the question.

### Step-by-Step Solution:

1. **Identify the Species:**
- The species we need to analyze are BH3, H2O+, NO2+, and Cl+.

2. **Analyze BH3:**
- Boron (B) in BH3 has only 6 electrons in its valence shell. It has an incomplete octet and can accept two electrons to complete its octet. Therefore, BH3 is electrophilic in nature.

3. **Analyze H2O+:**
- In H2O+, the oxygen atom has a positive charge. The structure shows that oxygen has two lone pairs and is surrounded by four electrons (two from the lone pairs and two from the bonds with hydrogen). This means it has a complete octet (8 electrons) and does not need any more electrons. Therefore, H2O+ is **not** electrophilic.

4. **Analyze NO2+:**
- In NO2+, nitrogen has lost an electron due to the positive charge. The nitrogen atom has 5 valence electrons and, with the positive charge, it effectively has 4 electrons around it. It requires one more electron to complete its octet, making it electrophilic.

5. **Analyze Cl+:**
- Chlorine (Cl) in Cl+ has lost one electron, resulting in a positive charge. Chlorine normally has 7 valence electrons, and with the positive charge, it has 6 electrons. It can accept an electron to achieve a stable octet. Thus, Cl+ is also electrophilic.

6. **Conclusion:**
- Among the species analyzed, H2O+ is the only one that is not electrophilic.

### Final Answer:
The species that is not electrophilic in nature is **H2O+**.