Q.1
Which molecular chemical bond found commonly in organic compounds?
  • Hydrogen Bond
  • Ionic Bond
  • Van Der Waals Force
  • Covalent Bond
Q.2
Which of the following compounds is not organic?
  • CH4
  • CO
  • C2H2
  • CCl4
Q.3
What is the prefix for 1?
  • mono
  • di
  • tri
  • tetra
Q.4
How many hydrogens does propyne have?
  • 4
  • 6
  • 8
  • 10
Q.5
Unsaturated hydrocarbons contain ___.
  • at least one double or triple bond between carbon atoms
  • only double bonds
  • only single bonds between carbon atoms
  • only triple bonds
Q.6
When but-2-ene is shaken with bromine water, the brown bromine water is decolourised. What is the product of this reaction?
  • 1,2-dibromobutene
  • 2,3-dibromobutene
  • 1,2-dibromobutane
  • 2,3-dibromobutane
Q.7
Polymerization is used to produce all following product except for:
  • PVC
  • Polyethylene
  • Paper
  • Polystyrene
Q.8
If H2 is added to C4Hthe product will be C4H12
  • True
  • False
Q.9
The alkene C3H6 is .... at room temperature
  • gas
  • liquid
  • solid
  • plasma
Q.10
All alkenes have .... bond
  • double
  • triple
  • ionic
  • metallic
Q.11
What conditions are necessary in the reaction of alkenes with hydrogen?
  • 300°C, Iron catalyst
  • 60°C, Nickel catalyst
  • 600°C, High pressure
  • Low temperature, Nickel catalyst
  • 600°C, High temperature
Q.12
What term describes alkene molecules that contain a C=C double bond?
  • saturated
  • unsaturated
Q.13
What are the first 3 alkenes in increasing carbon chain length?
  • Methene, ethene, propene
  • Ethene, propene, pentene
  • Ethene, propene, butene
  • Butene, ethene, propene
  • Methene, ethene, propane
Q.14
When does incomplete combustion occur?
  • Lack of oxygen
  • Excess oxygen
  • Depends
  • Lack of fuel
Q.15
Because carbon has 4 valence electrons
  • it can form up to 4 covalent bonds
  • it can form ionic bonds
  • it can form only double bonds
  • it can form covalent bonds with H only
Q.16
Which property of carbon is important in the forming of many types of organic compounds
  • carbon has 6 electrons
  • carbon has 6 protons
  • carbon has 4 valence electrons
  • carbon can only bond with hydrogen
Q.17
Carbon is
  • divalent
  • trivalent
  • tetravalent
  • pentavalent
Q.18
What are the products formed when propane is burnt in excess oxygen?
  • Carbon and hydrogen
  • Carbon dioxide and water
  • Carbon monoxide and water
  • Carbon monoxide and hydrogen
Q.19
Which of the following is true for all hydrocarbon?
  • They have carbon and hydrogen atoms only in the molecule.
  • They have carbon, oxygen and hydrogen atoms in the molecule.
  • They are in the same homologous series.
  • They are saturated compounds.
Q.20
Which of the following is an alkane?
  • C3H6
  • C4H8
  • C5H12
  • C6H12
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