Polyethylene
Nylon
Terylene
Rayon
urea
methane
acetic acid
benzene
Carbon dioxide
Sulphur dioxide
Ammonia
Hydrogen
It is spontaneous disintegration of atoms
It is induced by bombardment with projectiles
It is transmutation of atoms with projectiles
It is dependent on temperature
cryolite
bauxite
malachite
azurite
Hard water
Heavy water
Soft water
Both (a) and (b)
evaporation
sublimation
using a separating funnel
fractional distillation
land pollution
air pollution
noise pollution
water pollution
hydrochloric acid
ammonia
cane sugar
common salt
calcium carbonate
magnesium bicarbonate
calcium sulphate
magnesium sulphate
A - Z
A + Z
Z
A
calcium
sodium
magnesium
potassium
malathion
parathion
zinc phosphide
diuron
nitric acid
ammonia
nitrous acid
nitrogen peroxide
dextrose
fruit sugar
beet sugar
blood sugar
nitrogen
nitric oxide
nitrogen peroxide
nitrous oxide
Sedimentation
Electrophoresis
Tyndall effect
Brownian movement
streptomycin
terramycin
aureomycin
codein
Nitrogen
Phosphorus
Potassium
Mercury
electrochemistry
physical chemistry
biochemistry
tinctorial chemistry
they may appear better
they can resist the action of acids and alkalies
they lose their brittleness
they can withstand temperature shocks
nervous disorders
heart diseases
anaemia
impairment of vision
xenon
krypton
argon
helium
glacial acetic acid
methanol
formic acid
stearic acid
chrome steel
silicon steel
stainless steel
invar
a definite shape but not volume
a definite volume and shape
a definite volume but not shape
neither definite volume nor shape
a disinfectant
an analgesic
a hypnotic
a dye
bakelite
polythene
PVC
Teflon
hydrogen peroxide
silver nitrate
tincture iodine
m-cresol
animal charcoal
coal
wood charcoal
sugar charcoal