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Classification of polymers - Synthetic polymers
The polymers that are prepared in the laboratories are known as synthetic polymers. These are as well described as manmade polymers. Like PVC nylon, teflon, polyethene, synthetic rubber, bakelite terylene and so on.
If you have not used tar before, try this sequence to makeanarchive ofyour llast project: %cd;tar cf llast.tar llast %tar tfv llast.tar The first line m vesyou to your hom
Some of them show (S)-configuration at all their chiral centres. Illustrate their configurational formulae. If there is a meso-compound with this molecular formula illustrate it
de-Broglie equation is: (1) n γ= 2d sin θ (2) E= hv (3) E= mc 2 (4) γ= h/ mv Ans: γ= h/ mv
Addition polymerization: It involves following three mechanisms: 1. Free radical polymerization 2. Ionic polymerization mechanism 3.
why ionisation energy of aluminium is greater then Ga?
write the structures of the major product (saytzeff elimination) when the following alcohols are dehydrated with hot,concentrated sulphuric acid. 1. 3-methyl-2-butanol 2. 2-pentano
which is the main postulate of bohr''s model of atom
The molecule having one unpaired electron is: (1) NO (2) CO (3) CN - (4) Fe Ans: NO
why benzene is more stable then eniline?
Q. Evaluate the gold number of A? The coagulation of 100 mL of colloidal sol. is completely prevented by adding 0.25g of a protective colloid 'A' to it before adding 1 mL of Na
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