Main constituent part of misch metal alloy is

Options

A. Lanthanides
B. Actinides
C. Transition metal
D. Both by Lanthanides and Actinides

Answer

To solve the question regarding the main constituent part of misch metal alloy, we can follow these steps:

### Step 1: Understand Misch Metal Alloy
Misch metal is an alloy primarily composed of rare earth elements. It is commonly used in various applications, including the production of lighter flints and in the manufacturing of certain types of batteries.

**Hint:** Misch metal is associated with rare earth elements.

### Step 2: Identify the Main Components
The main constituents of misch metal include several rare earth elements, with cerium, lanthanum, and neodymium being the most significant.

**Hint:** Focus on the most abundant rare earth elements in the alloy.

### Step 3: Analyze the Composition
According to the information provided, the approximate composition of misch metal alloy is:
- Cerium: 55%
- Lanthanum: 5%
- Neodymium: 15%
- Other elements (including iron): approximately 5%

**Hint:** Look for the element with the highest percentage in the alloy.

### Step 4: Determine the Main Constituent
From the composition, we can see that cerium is the most abundant element, making up about 55% of the alloy. Although lanthanum is present, it only constitutes about 5%. Therefore, cerium is the main constituent part of the misch metal alloy.

**Hint:** Identify which element has the highest percentage to determine the main constituent.

### Step 5: Conclusion
The main constituent part of misch metal alloy is cerium, which constitutes approximately 55% of the alloy.

**Final Answer:** Cerium is the main constituent part of misch metal alloy.