What is ZSM-5? What is its formula ?

Explanation

**Step-by-Step Solution:**

1. **Understanding ZSM-5**: ZSM-5 is a type of zeolite, which is a crystalline solid known for its unique structure and properties. Zeolites are composed of silicon, aluminum, and oxygen atoms arranged in a framework that creates a network of cavities and channels.

2. **Composition of ZSM-5**: The primary components of ZSM-5 are silicon (Si), aluminum (Al), and oxygen (O). These elements form a microporous aluminosilicate mineral, which means it has a porous structure at the microscopic level.

3. **Properties of ZSM-5**: Due to its microporous nature, ZSM-5 can selectively adsorb small molecules and cations, making it useful in various applications such as catalysts and adsorbents in chemical processes.

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