General Science Chemistry Questions for SSC / UPSC Set 2

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General Science  Chemistry Questions for SSC / UPSC MCQs Set 2 Questions And Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Online free practice Quiz  – General Studies

1 .Source of vitamin C is
A.  Nitric acid
B.  Ascorbic acid
C.  Oxalic acid
D.  Maleic acid
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2 .Hydrochloric acid is also known as
A.  Garlic acid
B.  Picric acid
C.  Muriatic acid
D.  Chloric acid
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3 .Aqua Regia contains
A.  3 parts of conc. HCI + 1 part of con. HNO3
B.  3 parts of conc. HCI + 1 part of con. H2SO4
C.  3 parts of conc. H2SO4 + 1 part of con. HNO3
D.  None of these
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4 .Rate of diffusion of a gas is -
A.  Directly proportional to its density
B.  Directly proportional to its molecular mass
C.  Directly proportional to the square of its molecular mass
D.  Inversely propostional to the square root of its molecular mass
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5 .Deviations from ideal behavior will be more of the gas issubjected to-
A.  Low temperature and high pressure
B.  High temperature and low pressure
C.  Low temperature
D.  High temperature
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6 .An ideal gas is one which obeys-
A.  Gas laws
B.  Boyle's laws
C.  Charle's law
D.  Avogadro's law
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7 .Alcoholic fermentation is brought about the action of -
A.  yeast
B.  CO2
C.  O2
D.  CO
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8 .The enzymes are killed-
A.  At a very high temperature
B.  During chemical reaction
C.  At low temperature
D.  Under atmospheric pressure
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9 .If a refrigerator's door is kept open, then-
A.  Room will be cooled
B.  Room will be heated
C.  May get cooled or heated depending upon the weather
D.  No effect on room
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10 .When a gas is subjected to adiabatic expansion, it gets cooled due to-
A.  No chage in tntropy
B.  Loss in kinetic energy
C.  Decreases in velocity
D.  Energy spent in doing work-
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11 .Coal gas is a mixure of-
A.  H2, CH4, CO
B.  H2, N2, CO
C.  H2, N2, O2
D.  H2, O2, CO2
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12 .The gas supplied in cylinders for cooking is-
A.  marsh gas
B.  LPG
C.  Mixture of CH4 and C2H6
D.  Mixture of ethane and propane
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13 .The most electronegative element among the following is-
A.  Chlorine
B.  Oxygen
C.  Fluorine
D.  Sodium
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14 .When a gas is turned into a liquid, the process is called-
A.  Condensation
B.  Evaporation
C.  Deposition
D.  Sublimation
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15 .The boiling point of water decreases at higher altitudes is due to
A.  Low temperature
B.  Low atmospheric pressure
C.  High temperature
D.  High atmospheric pressure
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