The M.K.S. system was first introduced by
(a) Newton
(b) Giorgi
(c) Archimedes
(d) Eienstein
Answer:
Which one is the compound in the following
(a) Air
(b) Ammonia
(c) Mercury
(d) Ozone
Answer:
Isobars are lines displaying areas of equal
(a) Rainfall
(b) Atmospheric pressure
(c) Humidity
(d) Temperature
Answer:
Oxidation is defined as
(a) Loss of protons
(b) Gain of protons
(c) Loss of electrons
(d) Gain of electrons
Answer:
The horizontal line in modern periodic table is called
(a) Metal
(b) Period
(c) Group
(d) None of these
Answer:
The most electropositive amongst the alkaline earth metals is
(a) Calcium
(b) Barium
(c) Beryllium
(d) Magnesium
Answer:
Which of the following is moderate conductor of electricity
(a) Graphite
(b) Silica
(c) Carborundum
(d) Diamond
Answer:
Water is non-electrolyte but conducts electricity on dissolving a small amount of
(a) Acetone
(b) Common salt
(c) Sugar
(d) Urea
Answer:
Colloidal solution are not purified by
(a) Ultrafication
(b) Electrodialysis
(c) Dialysis
(d) Electrophoresis
Answer:
Medicines are more effective, if they are used in
(a) Colloidal state
(b) Solid state
(c) Solution state
(d) Gaseous state
Answer: