Which of the following can act as catalysts ?

Options

A. `(PH_(3)P)_(3),RhCl`
B. `TiCl_(4) + (C_(2)H_(5))_(3)AI`
C. `(C_(2)H_(5))_(4)Pb`
D. `(CH_(3))_(2) Zn`

Answer

To determine which of the given compounds can act as catalysts, we will analyze each compound mentioned in the question step by step.

### Step 1: Identify the Compounds
We need to first identify the compounds listed in the question. In the video transcript, two catalysts are mentioned: Wilkinson's catalyst and Ziglar-Natta catalyst.

### Step 2: Analyze Wilkinson's Catalyst
Wilkinson's catalyst is a well-known catalyst used in organic chemistry. It is primarily used for the hydrogenation of alkenes. This process involves the addition of hydrogen to unsaturated hydrocarbons (alkenes), converting them into saturated hydrocarbons (alkanes).

**Conclusion for Step 2:**
Wilkinson's catalyst acts as a catalyst for hydrogenation reactions.

### Step 3: Analyze Ziglar-Natta Catalyst
The Ziglar-Natta catalyst is another important catalyst in organic chemistry. It is primarily used in polymerization reactions, particularly in the production of low-density polyethylene (LDPE) and high-density polyethylene (HDPE). This catalyst facilitates the formation of long polymer chains from monomers.

**Conclusion for Step 3:**
Ziglar-Natta catalyst acts as a catalyst in polymerization reactions.

### Step 4: Determine the Answer
Based on the analysis of both catalysts:
- Wilkinson's catalyst can act as a catalyst for hydrogenation.
- Ziglar-Natta catalyst can act as a catalyst for polymerization.

Thus, both Wilkinson's catalyst and Ziglar-Natta catalyst can act as catalysts.

### Final Answer
The compounds that can act as catalysts are:
- **Wilkinson's catalyst**
- **Ziglar-Natta catalyst**