Adsorbed hydrogen by Palladium is known as

Options

A. Nascent
B. Atomic
C. Heavy
D. Occluded

Answer

To solve the question "Adsorbed hydrogen by Palladium is known as," we can follow these steps:

### Step 1: Understand the Concept of Adsorption
- Adsorption is the process where atoms, ions, or molecules from a gas, liquid, or dissolved solid adhere to a surface. In this case, we are focusing on hydrogen being adsorbed onto the surface of palladium.

**Hint:** Remember that adsorption involves the accumulation of substances at the surface rather than within the bulk material.

### Step 2: Identify the Specific Term Used for Adsorbed Hydrogen
- When hydrogen is adsorbed onto the surface of palladium, it is referred to by a specific term. The correct term for adsorbed hydrogen in this context is "occluded hydrogen."

**Hint:** Look for terminology that specifically describes the state of hydrogen when it is trapped or held within the structure of another material.

### Step 3: Confirm the Correct Answer
- Based on the understanding that the adsorbed hydrogen on palladium is known as "occluded hydrogen," we can conclude that the correct answer to the question is "occluded."

**Hint:** Cross-check the options provided in the question to ensure that "occluded" is listed as one of the choices.

### Final Answer
- The adsorbed hydrogen by palladium is known as **occluded hydrogen**.