Silicon forms giant covalent molecules in which each Si atom is covalently bonded to 4 other. Si atoms. Covalent bonds are strong (comparable to metallic bonds) and as each Si atom. forms 4 of them all 4 bonds must be broken to separate the atoms and Si has a very high b.p.,
Chiffon, which is a French word for rag, is a lightweight sheer material with a slightly rough feel to it.It can be made from cotton, silk or synthetic fibers, but is usually associated with silk or nylon. Chiffon can be dyed to almost any shade desired, however if made from polyester it is difficult to dye.t tears very easily inside a washing machine, and a garment made of chiffon can rip apart while the wearer is sleeping in it. Most chiffon nowadays is made from polyester (for stain resistance) which is woven as a stretch-knit fabric. Stretch-knit is a way of making non-stretchable fabrics stretch.
Definition of CHIFFONADE. : shredded or finely cut vegetables or herbs used especially as a garnish. ADVERTISEMENT. shredded or finely cut vegetables or herbs used especially as a garnish. ADVERTISEMENT.