Compound of sulphur used in electrical transformer is ____.

Answer

To solve the question "Compound of sulphur used in electrical transformer is ____," we can follow these steps:

### Step 1: Identify the context of the question
We need to determine which compound of sulfur is commonly used in electrical transformers. Transformers operate at high voltages, so the compound must have properties suitable for such applications.

**Hint:** Think about compounds of sulfur that are known for their electrical insulating properties.

### Step 2: Recall relevant sulfur compounds
Sulfur has several compounds, but we need to focus on those that are used in electrical applications. One prominent compound is sulfur hexafluoride (SF6).

**Hint:** Consider the properties of SF6 and why it might be used in electrical applications.

### Step 3: Understand the properties of SF6
SF6 is known for being an excellent dielectric gas. This means it can effectively insulate electrical components and prevent electrical discharges. It is also chemically inert, non-flammable, and non-toxic, making it safe for use in transformers.

**Hint:** Think about why these properties are important for a gas used in high-voltage applications.

### Step 4: Conclude the answer
Based on the properties and applications discussed, the compound of sulfur used in electrical transformers is sulfur hexafluoride (SF6).

**Final Answer:** The compound of sulfur used in electrical transformer is SF6 (sulfur hexafluoride).