Pyrex or borosil glass is used for making laboratory apparatus whereas crown glass in used in the manufacture of optical instruments. Give reason.

Explanation

**Step-by-Step Solution:**

1. **Identify the Types of Glass:**
- Pyrex or borosil glass and crown glass are two different types of glass used for specific purposes.

2. **Properties of Borosil Glass:**
- Borosil glass, commonly known as Pyrex, is known for its high resistance to thermal shock. This means it can withstand sudden changes in temperature without breaking.
- It has a low coefficient of thermal expansion, which allows it to expand and contract without cracking.
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