Fill in the blanks
- Electronic configuration of Silicon is _____________________
- Silica gel is used in _______________
- ____________ is used for polishing granite
1 or 2 marks questions
- Which are the allotropic forms of Silicon?
- What is emery paper?
- What is silicosis?
- Give reason : The workers in asbestos factories shall be provided with gas mask
- Describe biological significance of silica
- Why is hydrochloric acid used in extraction of silica
3 or 4 marks questions
- Describe the extraction of amorphous silicon
- Describe the extraction of crystalline silicon
- Compare the properties of Amorphous Silicon and Crystalline silicon
- Explain how silicon reacts with water with chemical equations
- List uses of silicon