amylase
lipase
carboxypeptidase
carbonic anhydrase
D. carbonic anhydrase
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
Potassium Permanganate
Bleaching Powder
Chlorine
Washing Soda
Calcium, magnesium and iron
Magnesium, Calcium and tin
Magnesium, tin and iron
Iron, tin and calcium
an AND circuit
an OR circuit
a high-pass filter
a NOR circuit
autogamy
entomophily
anemophily
ornithophily
Amphibian
Shark
Bony fish
Mammal
A Black solid
A red liquid
A highly inflammable gas
colourless gas insoluble in water
None of these
Ultraviolet rays
Infra Red rays
Cosmic Rays
Carbon
Hydrogen
Aluminium
Silicon
0°C
-4°C
100°C
4°C
Quartz and mica
Sand and salt
Sand and silicates
None of these
Beaufort scale
Secant scale
Mercalli scale
Richter scale
evaporation
condensation
sublimation
deposition
Increases
Remains unaltered
Drops sharply
Decreases
Adhesives
Detergents
Insecticides
Moth repellants
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
Desiccation
Efflorescence
Deliquescene
Osmosis
Platinum
Quartz
gold
Diamond
Uranium
Plutonium
Thorium
Zirconium
Silver
Magnesium
Platinium
Mercury
Carbamide
Chloroetane
Aneurin
None of these
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
A piece of iron that is not a permanent magnet
The north pole of another permanent magnet
A positively charged glass rod
A negatively charged rubber rod
An atom
A cation
A molecule
An anion
Conversion of nitrogen to nitric acid.
Production of nitrogen from air
Convert the atmospheric nitrogen to effective nitrogen compound.
Liquifaction of nitrogen
Calamine
Calcite
Galena
Bauxite
Atomic number
Atomic mass
Quantum numbers
None of these
Orion
Terylene
Rayon
Nylon
Nitric oxide
Nitrogen dioxide
Nitrogen pentoxide
Nitrous oxide
Earthquakes
Magnetic reversals
Hurricanses
Increased deposition of deep-sea sediments