Argon
Vanadium
Iodine
Sulphur
C. Iodine
A mixture of FeO and Fe(OH)2
A mixture of Fe2O3 and Fe(OH)2
A mixture of Fe2O3, 3H2O and FeO
FeO only
It burns in air to form water
It supports combustion
It readily combines with fluorine and chlorine
It combines with almost all metals forming hydrides
Silver
Magnesium
Platinium
Mercury
Carbon Monoxide
Phosgene
Phosphine
None of these
The varying amount of sunspot activity
The tilt of the earth's rotation relative to the ecliptic as earth revolves around the sun
The earth's orbit around the sun as an exlipse rather than a circle
The rotation of during a 24-hour day
Sodium
Cerium
Francium
Lithium
0°C
-4°C
100°C
4°C
styrene
methane
ethylene
acetylene
Nucleic acid
Carbohydrate
Collagen
Polymer
2CaSO4, H2O
CaSO4
CaSO4, 2H2O
2CaSO4, 4H2O
Amphibian
Shark
Bony fish
Mammal
Quartz and mica
Sand and salt
Sand and silicates
None of these
S
Ga
Se
I
A Black solid
A red liquid
A highly inflammable gas
colourless gas insoluble in water
Magnetic forces
Gravitational forces
Coulombic forces
Exchange forces
Mercury
Lithium
Lead
Silver
Earthquakes
Magnetic reversals
Hurricanses
Increased deposition of deep-sea sediments
Carbon
Hydrogen
Aluminium
Silicon
autogamy
entomophily
anemophily
ornithophily
1H1
1H2
6C12
8O16
None of these
Ultraviolet rays
Infra Red rays
Cosmic Rays
Deep Green
Violet
Prussian Blue
Yellow
6 feet
6 metres
60 cms
60 feet
Platinum
Quartz
gold
Diamond
Carbon dioxide
Hydrogen Sulphide
Oxygen
Nitrogen
Atomic warfare
Depletion of earth's ozone layer
CO2 from fossil fuels
Dust clouds from valcanoes
amylase
lipase
carboxypeptidase
carbonic anhydrase
An atom
A cation
A molecule
An anion
the sun comes in between the moon and the earth
the moon comes in between the sun and the earth
the earth comes in the between the sun and the moon
None of the above
Atomic number
Atomic mass
Quantum numbers
None of these