phenol
iodoform
bleaching powder
blue vitriol
A. phenol
Limestone
FeO
SiO2
MgO
homogeneous, sulphates
heterogeneous, nitrates
heterogeneous, carbonates
homogeneous, silicates
Tin
Silver
Iodine
Arsenic
nitrogen
nitric oxide
nitrogen peroxide
nitrous oxide
lead chloride
mercurous chloride
mercuric chloride
calcium sulphate
phosphorus pentaoxide
phosphorus trichloride
phosphorus trisulphide
phosphorus trioxide
isobars
isotopes
isomorphs
isomers
magnesium chloride
sodium chloride
calcium sulphate
potassium chloride
urea
methane
acetic acid
benzene
German silver
solder
magnalium
bell metal
chlorination
boiling
adding caustic soda
ozonisation
Aluminium
Copper
Zinc
Iron
an anaesthetic
a psychedelic drug
an antipyretic
an antibiotic
iodoform
chloroform
nitrous oxide-ether mixture
chloroform-nitrous oxide mixture
calcium carbonate
magnesium bicarbonate
calcium sulphate
magnesium sulphate
magnetic oxide of iron
ferric oxide
ferrous oxide
ferrous carbonate
fractional distillation
fractional crystallisation
sublimation
evaporation
It must be free from suspended impurities
It must be free from harmful bacteria
It must contain traces of sodium bicarbonate
It must have a fishy odour
in the treatment of malaria
to relieve sleepiness
to induce sleep
to lower body temperature
acetone
ether
ethyl alcohol
methyl alcohol
galena
dolomite
sylvine
pitchblende
Sir Ronald Ross
Sir Francis Haig
Dr Jagadish Chandra Bose
Sir CV Raman
vitamin C
vitamin B2
vitamin A
vitamin E
CO2 poisoning
CO poisoning
phosgene poisoning
anesthesia
asphalt
naphtha
diesel oil
lubricating oil
charcoal
bleaching powder
chlorine
carbolic acid
Aluminium
Silver
Copper
Magnesium
Hard water
Heavy water
Soft water
Both (a) and (b)
copper and tin
aluminium and magnesium
copper and zinc
copper, tin and zinc
carbon monoxide
carbon dioxide
methane
phosgene