coal gas
producer gas
water gas
gobar gas
C. water gas
a very sweet smell
a very pungent smell
an irritating smell
no smell at all
Vitamin B6
Vitamin C
Vitamin K
Vitamin D
galena
dolomite
sylvine
pitchblende
Phenol
Benzaldehyde
Formaldehyde
Acetic acid
tongue inflammation
pellagra
night blindness
anaemia
chlorine
nitrogen
sulphur
hydrogen
nitric acid
oxalic acid
carbonic acid
acetic acid
calcium sulphate
ammonium chloride
caustic soda
silver nitrate
animal charcoal
coal
wood charcoal
sugar charcoal
ethane
ethylene
acetylene
methane
evaporation
sublimation
using a separating funnel
fractional distillation
vitamin C
vitamin B2
vitamin A
vitamin E
carbon monoxide
carbon dioxide
methane
phosgene
Rutherford
Moseley
Niels Bohr
J.J. Thomson
contracts while setting
expands while setting
is highly volatile
does not suffer any changes in volume while setting
brimstone and silica
limestone and clay
brimstone and clay
brimstone and limestone
ammonium dichromate
copper Sulphate
magnesium Sulphate
sodium thiosulphate
Astatine
Francium
Tritium
Zirconium
phenol
washing soda
absolute alcohol
vinegar
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
phosphorus pentaoxide
phosphorus trichloride
phosphorus trisulphide
phosphorus trioxide
gypsum
urea
potassium nitrate
ammonium phosphate
is unaffected by temperature variations
decreases with increase of temperature
increases with decrease of temperature
increases with increase of temperature
chloro auric acid
auric chloride
gold nitrate
aurous chloride
Lead
Tin
Zinc
Aluminium
Radon
Astatine
Cesium
Ruthenium
Sodium
red phosphorus
white phosphorus
sulphur
Hydrolysis
Hydrogenation
Dehydration
Dehydrogenation
asphalt
naphtha
diesel oil
lubricating oil
Sir Ronald Ross
Sir Francis Haig
Dr Jagadish Chandra Bose
Sir CV Raman