Q.1
Which of the following hydrocarbons has a double bond in its carbon skeleton?
  • C3H8
  • C2H6
  • C2H2
  • C2H4
Q.2
What is formed when an organic compound is bunt?
  • Carbon dioxide
  • Hydrogen peroxide
  • Carbon Sulfide
  • Hydrogen Sulfide
Q.3
General formula of Alkane is
  • CnH2n+2
  • CnH2n
  • CnH2n+1OH
  • CnH2n+1COOH
Q.4
Carbon Dioxide constitutes about___________ of air volume.
  • 20%
  • 6%
  • 0%
  • 0.04%
Q.5
Who studied the role of carbon dioxide in respiration?
  • Irving Langmuir
  • Wendell Meredith Stanley
  • Antonie Lavoisier
  • Theodor Svedberg
Q.6
Who discovered carbon dioxide?
  • John Dalton
  • Charles Adolphe Wurtz
  • Jan Baptista van Helmont
Q.7
Carbon dioxide is the covalent compound of:-[you can select more than one correct answer in this question]
  • Oxygen
  • Carbon
  • Helium
  • Both A & B
Q.8
Select the correct properties of carbon dioxide:-
  • It is slightly acidic gas
  • It is non-poisonous gas
  • It is lighter than air
  • Both A & B
Q.9
When is the main oxide of carbon formed?
  • During photosynthesis
  • During erosion of soil
  • during the combustion of hydrocarbonfuels
Q.10
Carbon Dioxide forms a snow-white solid called dry ice to-
  • 64 degree Celsius
  • - 78 degree Celsius
  • -70 degree Celsius
Q.11
True or False:- Carbon Dioxide is fairly soluble in Water
  • True
  • False
Q.12
Which is a semiconductor?
  • graphite
  • diamond
  • fullerene
  • none of these
Q.13
Which is extremely hard?
  • graphite
  • diamond
  • fullerene
  • none of these
Q.14
Which is used in pencils ?
  • graphite
  • diamond
  • fullerene
  • none of these
Q.15
Which of the following formulas is inorganic?
  • CHO
  • CH
  • SiO
  • CHCOOH
Q.16
What would the formula be for thecarbon alkene?
  • C56H114
  • C56H112
  • C56H110
  • C56H56
Q.17
Which are the four organic compounds found in living things?
  • Carbohydrates, Lipids, Proteins, Nucleic Acids
  • Fats, Proteins, Atoms, Osmosis
  • Eating, Sleeping, Breathing, Talking
  • Anything without Carbon in it
Q.18
Which has ahexagonal layered structure?
  • graphite
  • diamond
  • fullerene
  • all of these
Q.19
Which consists of carbon atoms?
  • graphite
  • diamond
  • fullerene
  • all of these
Q.20
Which compound below is Organic?
  • C6H12O6
  • H2O
  • N2
  • BaBr2
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