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Science
Carbon And Its Compounds
Quiz 2
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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
0 h : 0 m : 1 s
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