GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 071

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 071

701). Iodine with starch gives the colour which?
A). red
B). yellow
C). pink
D). blue

Answer: blue


   
702). Bleaching powder contains
A). chlorine
B). bromine
C). iodine
D). nitrogen

Answer: chlorine


   
703). I. A physical change alters the composition of the substance
II. A reaction which produces heat is called exothermic reaction
A). false, true
B). true, false
C). false, false
D). true, true

Answer: false, true


   
704). i) a -particle is identical to hydrogen nuclei
ii) Normal solution contains 1 gm molecular weight of the solute per litre.
A). true, false
B). false, true
C). false, false
D). true, true

Answer: false, true

   
705). Match the following using the codes given below:
List l                                 List II
a) Hypo                         1) Silicon
b) Quartz                       2) Thiosulphate
c) Brine                         3) Aluminium ore
d) Bauxite                     4) Sodium chloride

Codes:
a b c d
A). 2 1 4 3
B). 1 3 2 4
C). 4 3 1 2
D). 3 2 4 1

Answer: 2 1 4 3



706). Match the following using the codes given below:
Codes:
List l                                  List II
a) Uranium                   1) Liquid metal
b) Graphite                   2) Radio activity
c) Mercury                    3) Alloy
d) Steel                        4) Pencil

a b c d
A). 1 2 3 4
B). 2 4 1 3
C). 4 3 2 1
D). 3 2 4 1

Answer: 2 4 1 3


   
707). Match the following using the codes given below:
List l                               List II
a) Caffine                    1) Tobacco
b) Opium                    2) Coffee
c) Nicotine                  3) Cinchona
d) Quinine                  4) Poppy

Codes:
a b c d
A). 1 2 3 4
B). 2 3 4 1
C). 2 4 1 3
D). 4 3 1 2

Answer: 2 4 1 3


   
708). Which of following atmospheric gages is in highest percentage?
A). carbon dioxide
B). oxygen
C). ozone
D). nitrogen

Answer: nitrogen


   
709). Gas used to harden oils in the preparation of vanaspathi
A). oxygen
B). nitrogen
C). hydrogen
D). carbondioxide

Answer: hydrogen


   
710). The term PVC used in the plastic industry stands for
A). polyvinyl carbonate
B). polyvinyl chloride
C). phosphavinyl chloride
D). phosphor vanadium, chloride

Answer: polyvinyl chloride