ZnSO4 . 7H2O
FeSO4 . 7H2O
MgSO4 . 7H2O
CaSO4 . 2H2O
A. ZnSO4 . 7H2O
number of neutrons in the nucleus
number of protons and neutrons in the nucleus
the valency of the element
number of protons in the nucleus
Nitric acid
Hydrochloric acid
Silver nitrate
Sulphuric acid
iodoform
chloroform
nitrous oxide-ether mixture
chloroform-nitrous oxide mixture
Carbon disulphide
Chloroform
Carbon tetrachloride
Methylene chloride
Carbon dioxide
Sulphur dioxide
Ammonia
Hydrogen
painting
applying alkaline phosphate
applying soap water
galvanising
asphalt
naphtha
diesel oil
lubricating oil
oleic acid
acetic acid
palmitic acid
stearic acid
proteins
carbohydrates
tannins
lipids
chloro auric acid
auric chloride
gold nitrate
aurous chloride
methyl alcohol and acetic acid
methyl alcohol and ethyl alcohol
ethyl alcohol and pyridine
methyl alcohol and pyridine
rapid cooling
rapid heating
slow cooling
slow heating
Terylene
Rayon
Nylon
Silk
calcium sulphate
ammonium chloride
caustic soda
silver nitrate
evaporation
sublimation
using a separating funnel
fractional distillation
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
Ammonium nitrate
Nitre
Charcoal powder
Sulphur
Kerosene oil
Diesel oil
Lubricating oil
Petroleum ether
carbon dioxide
chloroform
carbon tetrachloride
bleaching powder
annealing
tempering
calcining
galvanising
zinc
red phosphorus
magnesium
sulphur
cobalt
tin
manganese
platinum
Wohler
Dalton
Lavoisier
Fischer
they may appear better
they can resist the action of acids and alkalies
they lose their brittleness
they can withstand temperature shocks
Law of Multiple Proportions
Law of Definite Proportions
Law of Conservation of Mass
Law of Reciprocal Proportions
the manufacture of explosives
the manufacture of dyes
refrigerators
the preparation of drugs
bakelite
polythene
PVC
Teflon
Sedimentation
Electrophoresis
Tyndall effect
Brownian movement
Sir Ronald Ross
Sir Francis Haig
Dr Jagadish Chandra Bose
Sir CV Raman
chlorine
mercury
water
iodine