Some Important Compounds Of Carbon And Silicon
Chapter Name : The P- Block Elements |
Sub Topic Code : 102_11_11_09_06 |
Topic Name : Some Important Compounds Of Carbon And Silicon |
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Sub Topic Name : Zeolites |
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Introduction
1.If aluminum atoms replace few silicon atoms in three-dimensional network of silicon dioxide, overall structure known as aluminosilicate, acquires a negative charge. 2.Cations such as Na+, K+ or Ca2+ balance the negative charge. 3.Examples are feldspar and zeolites. 4. Zeolites are widely used as a catalyst in petrochemical industries for cracking of hydrocarbons and isomerisation, E.g., ZSM-5 (A type of zeolite) used to convert alcohols directly into gasoline. 5.Hydrated zeolites are used as ion exchangers in softening of “hard” water.
Pre-Requisites:
Elements, periodic table
Activity:
Hydrated zeolites are used as ion exchangers in softening of “hard” water.
Real Life Question:
What is glass made of?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| P block elements | Hydrated zeolites are used as ion exchangers in softening of “hard” water. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Glass, cement | Both are silicates |
Real life uses :
Hydrated zeolites are used as ion exchangers in softening of “hard” water.
Places to visit :
Water treatment plant
Practical examples around us
| Examples | Explainations |
|---|---|
| Zeolites | Zeolites are widely used as a catalyst in petrochemical industries for cracking of hydrocarbons and isomerisation, |
What you learn in Theory:
1.If aluminum atoms replace few silicon atoms in three-dimensional network of silicon dioxide, overall structure known as aluminosilicate, acquires a negative charge. 2.Cations such as Na+, K+ or Ca2+ balance the negative charge. 3.Examples are feldspar and zeolites. 4. Zeolites are widely used as a catalyst in petrochemical industries for cracking of hydrocarbons and isomerisation, E.g., ZSM-5 (A type of zeolite) used to convert alcohols directly into gasoline. 5.Hydrated zeolites are used as ion exchangers in softening of “hard” water.
What you learn in Practice:
Hydrated zeolites are used as ion exchangers in softening of “hard” water