Which of the following is radical intiator

Options

A. `R-N=N-R`
B.
C. `CH_(3)-underset(underset(CH_(3))(|))overset(overset(CH_(3))(|))(C)-O-O- underset(underset(CH_(3))(|)) overset(overset(CH_(3))(|))(C)-CH_(3)`
D. All

Explanation

To determine which of the given options is a radical initiator, we need to understand what a radical initiator is. A radical initiator is a compound that can generate free radicals upon decomposition, usually through heating or other means. These free radicals can then participate in further chemical reactions.

**Step-by-Step Solution:**

1. **Understand the Definition of Radical Initiators:**
- Radical initiators are compounds that can produce free radicals when they decompose. This decomposition often occurs with slight heating or under specific conditions.

2. **Analyze Each Option:**
- **Option A:** This compound can decompose upon gentle heating to form free radicals and nitrogen gas (N2). Therefore, it can act as a radical initiator.
- **Option B:** This is a peroxide compound. Peroxides are known to decompose to form free radicals. When heated, it can generate two free radicals, making it a radical initiator.
- **Option C:** This is another peroxide compound. Similar to option B, upon gentle heating, it can cleave to produce free radicals. Thus, it can also serve as a radical initiator.
- **Option D:** Since options A, B, and C can all act as radical initiators, option D states that all of them can be used as radical initiators.

3. **Conclusion:**
- All the options provided (A, B, C) can generate free radicals upon decomposition. Therefore, the correct answer is **D. All of them can be used as the radical initiator.**