Baking soda
Milk
Chloroform
Copper wire
B. Milk
n-heptane
n-octane
iso-heptane
iso-octane
quicklime
gypsum
soda lime
bleaching powder
land pollution
air pollution
noise pollution
water pollution
acetic acid
oxalic acid
chromic acid
citric acid
Terylene
Rayon
Nylon
Silk
increases the atomic mass of the atom
decreases the atomic mass of the atom
increases the charge on the nucleus
decreases the charge on the nucleus
sodium nitrate
Potassium nitrate
sodium thiosulphate
ammonium chloride
diamond
coke
graphite
charcoal
Hydrogen Sulphide
Nitrogen
Carbon-di-oxide
Oxygen
sodium hydroxide
sodium carbonate
sodium bicarbonate
potassium chloride
C6H12O6
C2H5OH
C12H22O11
C7H8O
urea
methane
acetic acid
benzene
acetone
ether
ethyl alcohol
methyl alcohol
Arsenic
Barium
Benzene
Bitumen
Silicon
Oxygen
Carbon
Calcium
gold
zinc
tin
molybdenum
shaking with caustic soda solution
shaking with water
fractional distillation of liquid air
passing air over heated magnesium
a congenital disease
a communicable disease
an acquired disease
a contagious disease
iodine
sulphur
graphite
phosphorus
carbon dioxide
chloroform
carbon tetrachloride
bleaching powder
manganese dioxide
bauxite
animal charcoal
quicklime
hydration
dehydration
dialysis
osmosis
a deliquescent substance
an efflorescent substance
a hygroscopic substance
a dehydrating substance
acetic acid
chloroform
urea
methane
Liebig
Pasteur
Bunsen
Erlenmeyer
magnesium chloride
sodium chloride
calcium sulphate
potassium chloride
lead chloride
mercurous chloride
mercuric chloride
calcium sulphate
Oxygen
Nitrogen
Hydrogen
Chlorine
Sedimentation
Electrophoresis
Tyndall effect
Brownian movement
dichloro-phenoxy-acetic acid
superphosphate of lime
chlorofluorocarbons (CFC)
dichloro-diphenyl-trichloro-ethane