Describe briefly:
Anionic polymerization

Describe briefly: Cationic polymerization

Describe briefly: Radical polymerization

Describe briefly the ionic concept of oxidation and reduction. Give an equation to illustrate.

In cationic polymerizalion, the initiator is an electrophile that adds to the alkene, causing it to become a cation. The Initiator most often used in cationic polymerization is a lewis acid. Such as BF_(3) or AICI_(3) and in anionic polymerization, the iniliator is a nucleophile that reacts with the alkene to form a propagating site that is an anion. Arrange the following group of monomers of decreasing ability to undergo cationic polymerization

Name the chief ore of aluminium. Describe briefly the extraction of aluminium from this ore.

In cationic polymerizalion, the initiator is an electrophile that adds to the alkene, causing it to become a cation. The Initiator most often used in cationic polymerization is a lewis acid. Such as BF_(3) or AICI_(3) and in anionic polymerization, the iniliator is a nucleophile that reacts with the alkene to form a propagating site that is an anion. Which of the follówing represents anionic polymerisation?

Describe briefly the purification of a colloid by dialysis.

Describe briefly the various light zones of a deep lake.

Describe briefly India's initiative in attaining total reproductive health.

Describe briefly the biological effects of light on (a) Pigmentation (b) Locomotion