The polymer which has conducting power is

Options

A. polyethylene
B. polybutadiene
C. polystyrene
D. polyacetylene

Explanation

To determine which polymer has conducting power, we need to analyze the properties of the given options. Conducting power refers to the ability of a material to allow the flow of electricity or heat through it.

### Step-by-Step Solution:

1. **Understand the Concept of Conducting Polymers**:
- Conducting polymers are materials that can conduct electricity due to their structure, which often includes conjugated double bonds that allow for the movement of charge carriers.

2. **Evaluate Each Option**:
- **Option A: Polyethylene**
- Polyethylene is an addition polymer made from ethylene. It is known for its insulating properties and is commonly used for coating wire cables. Therefore, it does not have conducting power.
- **Option B: Polybutadiene**
- Polybutadiene is formed from the polymerization of butadiene. It is primarily used as a rubber material and also exhibits insulation properties, making it a non-conducting polymer.
- **Option C: Polystyrene**
- Polystyrene is an addition polymer of styrene and is characterized by its resin-like properties. It contains small air bubbles that enhance its insulating capabilities, so it does not conduct electricity.
- **Option D: Polyacetylene**
- Polyacetylene is formed from the polymerization of acetylene. It has a structure with alternating double bonds, which allows for the movement of electrons. When combined with an anion acceptor, it can transfer charge, thus exhibiting conducting properties.

3. **Conclusion**:
- After evaluating all options, we find that **Polyacetylene (Option D)** is the polymer that has conducting power due to its unique structure that allows for charge transfer.

### Final Answer:
The polymer which has conducting power is **Polyacetylene (Option D)**.