GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 072

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 072

711). The boiling point of water on the Kelvin scale
A). 270°K
B). 373°K
C). 100°K
D). 212°K

Answer: 373°K


   
712). For drinking purpose water can be purified by
A). distillation
B). filtration
C). chlorination
D). sedimentation

Answer: chlorination


   
713). The hardest variety of carbon is
A). coal
B). charcoal
C). diamond
D). leeco

Answer: diamond


   
714). The poisonous gas produced by a Motor car
A). carbon monoxide
B). methyl isocyanate
C). carbon disulphide
D). nitrous oxide

Answer: carbon monoxide


   
715). What is the "lead" of a lead pencil made of
A). carbon
B). stone
C). graphite
D). lampblack

Answer: graphite



716). The tendency of similar molecules to stick together is known as
A). gravitation
B). adhesion
C). cohesion
D). assimilation

Answer: cohesion


   
717). Hydrogen bomb is based on the principle of
A). nuclear fission
B). nuclear reaction
C). nuclear explosion
D). non nuclear fission

Answer: nuclear fission


   
718). Estimation of nitrogen is done by
A). carius method
B). kassaigne's method
C). soda lime test
D). kjeldahl's method

Answer: kjeldahl's method


   
719). 95% alcohol is known as
A). absolute alcohol
B). rectified spirit
C). methylated spirit
D). power alcohol

Answer: power alcohol


   
720). Bleaching action of chlorine is by
A). oxidation
B). reduction
C). hydrolysis
D). decomposition

Answer: oxidation