Hard water
Heavy water
Soft water
Both (a) and (b)
C. Soft water
Thiokol
Drikold
Perhydrol
Mannitol
Aluminium
Chromium
Nickel
Tungsten
acetone
ether
ethyl alcohol
methyl alcohol
electrochemistry
physical chemistry
biochemistry
tinctorial chemistry
neon
argon
helium
krypton
Rusting of iron
Burning of magnesium
Sublimation of iodine
Electrolysis of water
nickel
aluminium
mercury
calcium
an oxidation process
a reduction process
a physical change
an electro-chemical process
quick lime
tincture iodine
rectified spirit
None of these
Vitamin B6
Vitamin C
Vitamin K
Vitamin D
n-heptane
n-octane
iso-heptane
iso-octane
iron with very low percentage of carbon
iron with high percentage of carbon
iron and chromium
iron and manganese
low pressure and high temperature
low pressure and low temperature
high pressure and low temperature
high pressure and high temperature
cryolite
bauxite
malachite
azurite
phosphorus pentaoxide
phosphorus trichloride
phosphorus trisulphide
phosphorus trioxide
Petrol
Kerosene
Hydrazine
Alcohol
273 K
0 K
273°C
-273°C
methane
nitrogen
carbondioxide
ethylene
shaving creams
adhesive tapes
toilet powders
lubricants
carbohydrates
proteins
salts
fats
Limestone
FeO
SiO2
MgO
It is spontaneous disintegration of atoms
It is induced by bombardment with projectiles
It is transmutation of atoms with projectiles
It is dependent on temperature
iodine
sulphur
graphite
phosphorus
sucrose
maltose
glucose
fructose
nitric oxide
nitrogen peroxide
nitrogen pentoxide
nitrous oxide
Carbon monoxide
Oxygen
Nitrogen
Hydrogen
copper and tin
aluminium and magnesium
copper and zinc
copper, tin and zinc
chlorination
boiling
adding caustic soda
ozonisation
Law of Multiple Proportions
Law of Definite Proportions
Law of Conservation of Mass
Law of Reciprocal Proportions
nitrogen
nitric oxide
nitrogen peroxide
nitrous oxide