The monomer of PAN is ...............

Answer

To determine the monomer of PAN (Polyacrylonitrile), we need to follow these steps:

### Step 1: Understand the Acronym
The acronym "PAN" stands for Polyacrylonitrile.

**Hint:** Remember that polymers are made from repeating units called monomers.

### Step 2: Identify the Monomer
The monomer that polymerizes to form Polyacrylonitrile is acrylonitrile.

**Hint:** Look for the chemical structure that contains a nitrile group (-C≡N) attached to a vinyl group (C=C).

### Step 3: Chemical Structure of Acrylonitrile
The chemical structure of acrylonitrile can be represented as:
- H2C=CH-C≡N

This shows that acrylonitrile contains a double bond between the first two carbon atoms and a triple bond with the nitrogen atom.

**Hint:** Visualize the structure: the first carbon is connected to two hydrogen atoms, the second carbon is connected to the first carbon and the third carbon (which has a triple bond with nitrogen).

### Step 4: Conclusion
Thus, the monomer of PAN (Polyacrylonitrile) is acrylonitrile.

**Final Answer:** The monomer of PAN is acrylonitrile.

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