Explain the advantages of synthetic polymers over natural polymers.

Identify the monomers of the polymer

In which of the following polymers, the strong intermolecular hydrogen bonding is present?

(I) Cellulose
(II) Nylon
(lll) PVC
(IV) Polyisoprene

Solve the puzzle.

ACROSS:

6. Long chains of repeating molecules.
8. Organic group such as sugars and starches.
9. Compound with same empirical but different structural formula.
11. Large polymers of amino acids.
12. Hydrocarbon containing single bonds.
13. Hydrocarbon containing double bonds.

DOWN:

1. Term that refers to compounds with double and triple bonds. 
2. Distillation used to separate petroleum into individual products.

3. Containing only hydrogen and carbon.
4. Plastic derived from petroleum.

5. Compounds containing the benzene ring.
7. Hydrocarbon containing triple bonds.
10. Alcohol often obtained from corn.

Product Z will be:

What is the Monomer of ?

Assertion:- Polypropylene is an addition polymer.

Reason:- The monomer unit of polypropylene ${\mathrm{CH}}_3-\mathrm{CH}={\mathrm{CH}}_2$