rain water
river water
conductivity water
deep well water
D. deep well water
Lead
Tin
Silver
Gold
phenol
washing soda
absolute alcohol
vinegar
nitric acid
oxalic acid
carbonic acid
acetic acid
whooping cough
tetanus
diphtheria
All the three
animal charcoal
coal
wood charcoal
sugar charcoal
cryolite
bauxite
malachite
azurite
ZnSO4 . 7H2O
FeSO4 . 7H2O
MgSO4 . 7H2O
CaSO4 . 2H2O
Carbon disulphide
Chloroform
Carbon tetrachloride
Methylene chloride
nervous disorders
heart diseases
anaemia
impairment of vision
fractional distillation
fractional crystallisation
sublimation
evaporation
aquatic macrophytes
aquatic fungi
effluents
evapotranspiration
solid carbon dioxide
liquid oxygen
liquid hydrogen
liquid. Chlorine
atomic number
valency
atomic mass
atomic radius
pyrex glass
flint glass
quartz glass
Crooke's glass
ammonium dichromate
copper Sulphate
magnesium Sulphate
sodium thiosulphate
as an analgesic
in the purification of water
as a fertilizer
as a disinfectant
charcoal
bleaching powder
chlorine
carbolic acid
an explosive
a fertilizer
a dye
a bleaching agent
painting
applying alkaline phosphate
applying soap water
galvanising
Alexander Fleming
Sir JJ Thomson
Dr Nessler
Sir John Russel
Nitrogen
Phosphorus
Potassium
Mercury
tin and copper
tin and lead
tin and zinc
tin, copper and zinc
acetone
ether
ethyl alcohol
methyl alcohol
cobalt
tin
manganese
platinum
Rusting of iron
Burning of magnesium
Sublimation of iodine
Electrolysis of water
chloro auric acid
auric chloride
gold nitrate
aurous chloride
1 : 1
1 : 2
2 : 3
1 : 3
Activated charcoal
Anthracite coal
Diamond
Graphite
n-heptane
n-octane
iso-heptane
iso-octane
calcium carbonate
sodium carbonate
magnesium sulphate
ferric chloride