diamond
coke
graphite
charcoal
C. graphite
sucrose
glucose
fructose
mannose
Rutherford
Moseley
Niels Bohr
J.J. Thomson
high temperature
light
moisture
dry air
a cupel
a long narrow chamber
an open furnace
a closed furnace
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
Radon
Astatine
Cesium
Ruthenium
three
four
one
five
isobars
isotopes
isomorphs
isomers
adrenalin
glucagon
epinephrin
thyroxin
the percentage of carbon dioxide in air is kept almost constant
air always contains a constant proportion of oxygen
sufficient amounts of carbohydrates are produced
the process of photosynthesis proceeds smoothly
sucrose
glucose
fructose
a mixture of glucose and fructose
annealing
tempering
calcining
galvanising
methyl alcohol and acetic acid
methyl alcohol and ethyl alcohol
ethyl alcohol and pyridine
methyl alcohol and pyridine
zinc
red phosphorus
magnesium
sulphur
to make air a moderate supporter of combustion
to maintain the density of air constant
to prevent the hydrogen in air from exploding
to reduce the poisonous nature of ozone in air
phenol
TNT
picric acid
iodoform
in the treatment of malaria
to relieve sleepiness
to induce sleep
to lower body temperature
they may appear better
they can resist the action of acids and alkalies
they lose their brittleness
they can withstand temperature shocks
the initial showers wash the atmosphere free from most of the impurities
it contains desirable salts like sodium chloride and ammonium nitrate
it dissolves the gases in the atmosphere like ozone which are good for health in small quantities
it is supposed to be 'heaven sent'
nuclear' fusion
radioactive disintegration
nuclear fission
chemical decomposition
rubbers
fibres
resins
sugars
Carbon dioxide
Ammonia
Chlorine
Hydrogen sulphide
kerosene
naphtha
lubricating oil
asphalt
ammonium dichromate
copper Sulphate
magnesium Sulphate
sodium thiosulphate
brass
common salt
cane sugar
water
hydrochloric acid
citric acid
tartaric acid
acetic acid
tin and copper
tin and lead
tin and zinc
tin, copper and zinc
sucrose
maltose
glucose
fructose
silica, sodium nitrate and soda ash
silica, limestone and sodium nitrate
silica, sodium oxide and limestone
silica, soda ash and limestone
glacial acetic acid
methanol
formic acid
stearic acid