Which of these is not a monomer for a high molecular mass silicone polymer?
1. | Me2SiCl2 | 2. | Me3SiCl |
3. | PhSiCl3 | 4. | MeSiCl3 |
The basic structural unit of silicates is:
1. SiO44–
2. SiO32–
3. SiO42–
4. SiO
1. | Quartz is extensively used as a piezoelectric material. |
2. | Silicones are a group of organosilicon polymers, which have (-R2SiO-) as a repeating unit. |
3. | Basic structural unit in silicates is the SiO44– tetrahedron. |
4. | Feldspars are not aluminosilicates. |
Which one of the following anions is present in the chain structure silicates?
1.
2.
3.
4.