The antibiotic Penicillin is obtained from ___________ 

(a)

plant

(b)

microorganism

(c)

animal

(d)

sunlight

The cathode of an electrochemical reaction involves ____________

(a)

oxidation

(b)

reduction

(c)

neutralisation

(d)

catenation

Which of the following does not contain natural dyes?

(a)

Potato

(b)

Beetroot

(c)

Carrot

(d)

Turmeric

Radiochemistry deals with

(a)

oxidants

(b)

batteries

(c)

isotopes

(d)

nanoparticles

Chlorinated hydrocarbons are used as

(a)

fertilizers

(b)

pesticides

(c)

food colourants

(d)

preservatives