An atom
A cation
A molecule
An anion
A. An atom
Carbamide
Chloroetane
Aneurin
None of these
Argon
Vanadium
Iodine
Sulphur
A mixture of B and C
Silicon dioxide
Germenium dioxide
Sodium Silicate
an AND circuit
an OR circuit
a high-pass filter
a NOR circuit
Orion
Terylene
Rayon
Nylon
Deep Green
Violet
Prussian Blue
Yellow
Calcium, magnesium and iron
Magnesium, Calcium and tin
Magnesium, tin and iron
Iron, tin and calcium
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
Carbon
Hydrogen
Aluminium
Silicon
Calamine
Calcite
Galena
Bauxite
Increases
Remains unaltered
Drops sharply
Decreases
Pyrex glass
Soft glass
Flint glass
Jena glass
evaporation
condensation
sublimation
deposition
autogamy
entomophily
anemophily
ornithophily
Adhesives
Detergents
Insecticides
Moth repellants
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
Mercury
Lithium
Lead
Silver
Sulphonates
Zeolites
Nitrates
None of these
Silver
Magnesium
Platinium
Mercury
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
Zinc
Iron
Copper
Lead
permeable
semipermeable
selectively permeable
impermeable
An atom
A cation
A molecule
An anion
6 feet
6 metres
60 cms
60 feet
Uranium
Plutonium
Thorium
Zirconium
Carbon Monoxide
Phosgene
Phosphine
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
Methane, Butane and Propane
Methane, Ethane and Hexane
Ethane, Hexane and Nonane
Methane, Hexane and Nonane
Nucleic acid
Carbohydrate
Collagen
Polymer