General Science Chemistry Questions for SSC / UPSC Set 4

General Science  Chemistry Questions for SSC / UPSC MCQs Set 4 Questions And Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Online free practice Quiz  – General Studies

General Science  Chemistry Questions for SSC / UPSC Set 4 1

1 .The velocity of neutrons in nuclear reactor is slowed down by-
A.  Heavy water (D2O)
B.  Zinc rod
C.  Fused caustic soda
D.  Ordinary water (H2O)
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2 .Which of the following gases is used in cigarette lighters?
A.  Butane
B.  Methane
C.  Propane
D.  Radon
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3 .The chemical used as a fixer /developer in photography
A.  Sodium sulphate
B.  Sodium sulphide
C.  Sodium thiosulphate
D.  Sodium sulphite
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4 .Marsh gas contains-
A.  CO2
B.  CH4
C.  N2
D.  C2H6
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5 .The ultraviolet rays can be checked by -
A.  Flint glass
B.  Crooke's glass
C.  Soda glass
D.  Pyrex glass
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6 .Permanent hardness of water is due to the presence of
A.  Sulphates of sodium and potassium
B.  Sulphates of magnesium and calcium
C.  Carbonates of sodium and magnesium
D.  Bicarbonates of magnesium and calcium
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7 .Red phosphorus is less reactive than yellow phosphorus because-
A.  It is red in colour
B.  it is highly polymerized
C.  It is insoluble in C2H5OH
D.  it is hard
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8 .In the manufacture of safety matches, we use-
A.  White phosphorus
B.  Black phosphoorus
C.  Violet phosphorus
D.  Red phosphorus
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9 .Photographic plates are coated with a film of-
A.  AgCI
B.  AgBr
C.  AgI
D.  AgNO3
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10 .Cid rain is due to
A.  Sulphur dioxide pollution
B.  Carbon monoxide pollution
C.  Pesticide pollution
D.  Dust particules in the atmosphere
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11 .The gas used to extinguish fire is -
A.  Neon
B.  Nitrogen
C.  Carbon dioxide
D.  Carbon monoxide
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12 .Which of the following is responsible for blue baby syndrome-
A.  Fluoride
B.  Nitrate
C.  Arsenic
D.  Lead
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13 .The pollutan responsible for ozone holes is …………
A.  CO2
B.  SO2
C.  CO
D.  CFC
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14 .Nitrogen in water is commonly found in the form of :
A.  Nitric oxide
B.  Nitrous oxide
C.  Nitrate
D.  Nitrite
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15 .In the study of pollution, SPM refers to
A.  Sulphur Phosphorus Matter
B.  Sulphur Particlulate Matter
C.  Solid Particulate Matter
D.  Suspended Particulate Matter
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