acetone
ether
ethyl alcohol
methyl alcohol
A. acetone
potassium and lead silicates
zinc and barium borosilicates
potassium and calcium silicates
sodium and calcium silicates
Gasoline
Benzoline
Kerosene
Petroleum ether
Palladium
NaCI
KOH
Dilute H2SO4
A mixture of potassium nitrate and carbon
A mixture of ammonium chloride and sodium nitrate
A mixture of potassium chlorate and manganese dioxide
A mixture of ammonium nitrate and charcoal
Na2CO3 . 10H2O
NaHCO3
Na2CO3 . H2O
NH4CI
whooping cough
tetanus
diphtheria
All the three
aquatic macrophytes
aquatic fungi
effluents
evapotranspiration
Hydrogen Sulphide
Nitrogen
Carbon-di-oxide
Oxygen
acid fumes
sodium bicarbonate
carbon dioxide
sodium carbonate
carbon disulphide
carbon tetrachloride
phosgene
chloroform
Petrol
Kerosene
Hydrazine
Alcohol
Lithium
Helium
Sodium
Cobalt
gypsum
urea
potassium nitrate
ammonium phosphate
it contains carbonates of calcium and magnesium
it contains sodium chloride
it is highly coloured
it contains suspended impurities
Radon
Astatine
Cesium
Ruthenium
an oxidation process
a reduction process
a physical change
an electro-chemical process
6.023 x 1022
1 x 10-14
cl 6.056 x 10-6
6.023 x 1023
iodoform
chloroform
nitrous oxide-ether mixture
chloroform-nitrous oxide mixture
fractional distillation
fractional crystallisation
sublimation
evaporation
as an analgesic
in the purification of water
as a fertilizer
as a disinfectant
adding milk of lime
filtering through sand
adding filter alum
chlorination
Oxygen
Nitrogen
Hydrogen
Chlorine
gold
zinc
tin
molybdenum
zinc
red phosphorus
magnesium
sulphur
pyridine
hydrogen sulphide
cacodyl
carbylamines
solid carbon dioxide
liquid oxygen
liquid hydrogen
liquid. Chlorine
ferric sulphate
ferric oxalate
ferric nitrate
ferric chloride
hydrochloric acid
ammonia
cane sugar
common salt
grams
pounds
carats
tons
annealing
tempering
calcining
galvanising