Distillation
Decantation
Evaporation
Filtration
A molecule whose electrons are distributed unsymmetrical is said to be
A non-electronic conductor is
A powerful eye irritant present in smog is
A radioactive substance has a half life of four months, three-fourth of the substance would decay in
A single covalent bond
A substance emits energy which is detected as a line emission in the visible region using a spectroscope. The origin of this energy is
A traditional battery contains which of the following chemicals?
Acid and alcohol react to form
Acid rain is caused due to pollution of atmosphere by
Acid secretion is characteristic of
