The polymer PMMA is used for making ....................and its monomer is.

Answer

To solve the question regarding the polymer PMMA, we will break it down into two parts: identifying what PMMA is used for and determining its monomer.

### Step 1: Identify the polymer PMMA
PMMA stands for Polymethyl methacrylate. It is a synthetic polymer that is known for its clarity, strength, and resistance to UV light.

### Step 2: Determine the uses of PMMA
PMMA is commonly used for making various products, including:
- Eye lenses (such as those used in glasses)
- Skylights and domes
- Displays and signage
- Various types of optical applications

### Step 3: Identify the monomer of PMMA
The monomer of PMMA is methyl methacrylate. Its chemical structure can be represented as:
- C₄H₈O₂
- It has a double bond between carbon atoms and is characterized by the functional group of an ester.

### Final Answer
PMMA is used for making eye lenses and its monomer is methyl methacrylate.

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