An example of anti-fertility drug is ____________.

(a)

novestrol

(b)

seldane

(c)

salvarsan

(d)

Chloramphenicol

The drug used to induce sleep is _______________.

(a)

paracetamol

(b)

bithional

(c)

chloroquine

(d)

equanil

Which of the following is a co-polymer?

(a)

Orlon

(b)

PVC

(c)

Teflon

(d)

PHBV

The polymer used in making blankets (artificial wool) is _______.

(a)

polystyrene

(b)

PAN

(c)

polyester

(d)

polythene

Regarding cross-linked or network polymers, which of the following statement is incorrect?

(a)

Examples are Bakelite and melamine

(b)

They are formed from bi and tri-functional monomers

(c)

They contain covalent bonds between various linear polymer chains

(d)

They contain strong covalent bonds in their polymer chain