in the treatment of malaria
to relieve sleepiness
to induce sleep
to lower body temperature
D. to lower body temperature
Chloroform
Morphine
Streptomycin
Cocaine
phenol
TNT
picric acid
iodoform
Rutherford
Moseley
Niels Bohr
J.J. Thomson
a definite shape but not volume
a definite volume and shape
a definite volume but not shape
neither definite volume nor shape
Limestone
FeO
SiO2
MgO
tin and copper
tin and lead
tin and zinc
tin, copper and zinc
the manufacture of explosives
the manufacture of dyes
refrigerators
the preparation of drugs
magnesium chloride
sodium chloride
calcium sulphate
potassium chloride
it contains carbonates of calcium and magnesium
it contains sodium chloride
it is highly coloured
it contains suspended impurities
pyridine
hydrogen sulphide
cacodyl
carbylamines
hydrogen
nitrogen
oxygen
noble gases
sulphanilamide
quinine
methicillin
novocaine
tine
magnesium
zinc
copper
sodium bicarbonate
sodium carbonate
carbonic acid
sodium hydroxide
hydrogen peroxide
silver nitrate
tincture iodine
m-cresol
oxalic acid
citric acid
acetic acid
hydrochloric acid
A - Z
A + Z
Z
A
benzene
methane
ethane
butane
Astatine
Francium
Tritium
Zirconium
Aluminium
Silver
Copper
Magnesium
aldehydes
alkenes
amino acids
alkynes
nitrogen
nitric oxide
nitrogen peroxide
nitrous oxide
chlorine
mercury
water
iodine
Palladium
NaCI
KOH
Dilute H2SO4
whooping cough
tetanus
diphtheria
All the three
1 : 1
1 : 2
2 : 3
1 : 3
Distillation of water
Action of heat on potassium chlorate
Powdering of glass
Burning of an electric lamp
ethyl alcohol
chloroform
oxygen
methyl alcohol
nitric acid
oxalic acid
carbonic acid
acetic acid
Petrol
Kerosene
Hydrazine
Alcohol