Level 2 Chemistry Flashcards

Front

What is the monomer of polyvinyl chloride?

Back

The monomer is chloroethene (vinyl chloride).

Front

Explain the difference in structures and reactivity of monomer and polymer of PVC.

Back

The monomer (chloroethene) is a small, reactive molecule, while the polymer (PVC) is a large, stable molecule. This difference affects their uses, as the polymer is more durable and less reactive.

Front

What is 'addition polymerisation'?

Back

Addition polymerisation is the process of forming a polymer by adding monomers together without the loss of any small molecules. For PVC, the equation is: n CH2=CHCl → (C2H3Cl)n.

Front

What is the organic product formed from 2-chloropropane and conc. KOH(alc)?

Back

The organic product is propene.

Front

How can the functional group of the organic product from 2-chloropropane be identified?

Back

The functional group can be identified by testing for the presence of a double bond, which is characteristic of alkenes.

Front

What are the two products formed from 2-bromo-3-methylbutane and conc. KOH(alc)?

Back

The major product is 3-methylbut-2-ene and the minor product is 2-methylbut-2-ene.

Front

Draw four alkene isomers for C4H8.

Back

1. But-1-ene, 2. But-2-ene, 3. Isobutylene, 4. Cyclobutane.

Front

Contrast the reactions of alkanes and alkenes with bromine water.

Back

Alkanes do not react with bromine water, while alkenes undergo an addition reaction, decolorizing the bromine water.