At inner membrane of mitochondria, passing on the electron removed as part of the hydrogen atoms to molecular `O_(2)` with simultaneous synthesis of ATP occurs.

Answer

To determine whether the statement is correct or incorrect, let's break it down step by step.

### Step-by-Step Solution:

1. **Understanding Mitochondria Structure**:
- Mitochondria have two membranes: an outer membrane and an inner membrane. The inner membrane is where significant biochemical processes occur.

**Hint**: Remember that mitochondria are often referred to as the "powerhouses" of the cell due to their role in energy production.

2. **Identifying the Processes**:
- The two main processes that occur in mitochondria are the Krebs cycle (also known as the citric acid cycle) and the electron transport chain (ETC).
- The Krebs cycle occurs in the mitochondrial matrix, while the electron transport chain occurs along the inner mitochondrial membrane.

**Hint**: Recall that the Krebs cycle is responsible for breaking down glucose and producing electron carriers (NADH and FADH2) which are used in the ETC.

3. **Role of the Electron Transport Chain**:
- The electron transport chain is responsible for transferring electrons derived from hydrogen atoms (from NADH and FADH2) to molecular oxygen (O2).
- This transfer of electrons releases energy, which is used to pump protons (H+) across the inner membrane, creating a proton gradient.

**Hint**: Think about how the flow of protons back into the mitochondrial matrix through ATP synthase drives the synthesis of ATP.

4. **ATP Synthesis**:
- The energy from the proton gradient is utilized by ATP synthase, an enzyme located in the inner membrane, to synthesize ATP from ADP and inorganic phosphate (Pi).
- This process is known as oxidative phosphorylation.

**Hint**: Remember that ATP is the energy currency of the cell, and its synthesis is crucial for various cellular functions.

5. **Conclusion**:
- The statement in the question asserts that at the inner membrane of mitochondria, electrons are passed to molecular O2 with simultaneous ATP synthesis. This is indeed correct.
- Therefore, the statement is true.

### Final Answer:
The statement is correct.