Electrolysis of potassium fumarate gives ...........

Answer

To solve the question regarding the electrolysis of potassium fumarate, we can follow these steps:

### Step 1: Understand the Electrolysis Process
Electrolysis involves the breakdown of a compound into its components using electrical energy. In this case, we are looking at potassium fumarate, which is a salt derived from fumaric acid.

### Step 2: Identify the Products at the Anode and Cathode
During electrolysis, different reactions occur at the anode (positive electrode) and cathode (negative electrode).

- **At the Anode**: The oxidation reaction occurs. For potassium fumarate, the expected product is acetylene (C2H2) and carbon dioxide (CO2).
- **At the Cathode**: The reduction reaction occurs. Here, potassium hydroxide (KOH) and hydrogen gas (H2) are produced.

### Step 3: Write the Overall Reaction
From the above observations, we can summarize the products formed during the electrolysis of potassium fumarate:

- **At the Anode**: Acetylene (C2H2) + 2 Carbon Dioxide (2 CO2)
- **At the Cathode**: 2 Potassium Hydroxide (2 KOH) + Hydrogen gas (H2)

### Final Answer
Thus, the electrolysis of potassium fumarate gives:
- **At the Anode**: Acetylene (C2H2) + 2 CO2
- **At the Cathode**: 2 KOH + H2

---