1 and 3
2 and 3
1, 2 and 4
1, 2, 3 and 4
methyl alcohol and acetic acid
methyl alcohol and ethyl alcohol
ethyl alcohol and pyridine
methyl alcohol and pyridine
asphalt
naphtha
diesel oil
lubricating oil
Terylene
Rayon
Nylon
Silk
benzene
methane
ethane
butane
Nitrogen
Phosphorus
Potassium
Mercury
Lead
Tin
Zinc
Aluminium
evaporation
using a magnet
sublimation
sedimentation
dehydration
oxidation
reduction
dehydrogenation
manganese dioxide
bauxite
animal charcoal
quicklime
Tin
Silver
Iodine
Arsenic
chlorine
carbon monoxide
sulphur dioxide
o-cresol
tincture iodine
paints
ink
aerated water
gypsum
urea
potassium nitrate
ammonium phosphate
coal gas
producer gas
water gas
gobar gas
Lavoisier
Priestley
Dalton
Avogadro
nickel
copper
sulphur
graphite
they may appear better
they can resist the action of acids and alkalies
they lose their brittleness
they can withstand temperature shocks
sucrose
maltose
glucose
fructose
an explosive
a fertilizer
a dye
a bleaching agent
wrought iron
steel
pig iron
nickel steel
an oxidation process
a reduction process
a physical change
an electro-chemical process
nitric acid
ammonia
nitrous acid
nitrogen peroxide
Lithium
Helium
Sodium
Cobalt
methane
nitrogen
carbondioxide
ethylene
Chadwick
Madam Curie
Becquerel
Aston
ferric sulphate
ferric oxalate
ferric nitrate
ferric chloride
Tungsten steel
Manganese steel
Chromium steel
Nickel steel
quick lime
tincture iodine
rectified spirit
None of these
Polyethylene
Nylon
Terylene
Rayon