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- 1. Multiple Choice
What is the condition needed for substitution reaction with chlorine?
presence of sunlight
presence of red light
presence of UV light
all of the above
- 2. Multiple Choice
What type of chemical reaction is this:
C3H8 + Br2 ⟶ C3H7CBr + HBr
Incomplete combustion
Hydrogenation
Complete combustion
Free radical substitution
- 3. Multiple Choice
Which of the following is true about incomplete combustion?
It takes place because there is too much fuel
It takes place because there is not enough supply of air
The products are soot and hydrocarbons
The products are hydrogen and water
- 4. Multiple Choice
Give the name of reaction, when alkanes react with bromine in the presence of UV.
Hydrogenation
Halogenation
Hydration
Hydrohalogenation
- 5. Multiple Choice
What happened if alkane reacts with limited oxygen?
Produced carbon dioxide and water
Produced carbon monoxide and water
Produced oxygen and water
Produced soot and water
- 6. Multiple Choice
Which two elements do all organic compounds contain?
Carbon and hydrogen
Carbon and oxygen
Oxygen and hydrogen
Carbon and nitrogen
- 7. Multiple Choice
Give the name of reaction, when alkanes react with bromine in sunglight.
Hydrogenation
Halogenation
Hydration
Hydrohalogenation
- 8. Multiple ChoiceWhat are the products of complete combustion?SO2 + H2OH2OCOCO + H2OCO2 + H2O
- 9. Multiple ChoiceWhat does an alkene have that an alkane does not?ElectronsLess reactiveOxygenDouble C=C bondSingle C-C bond
- 10. Multiple Choice
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
- 11. Multiple Choice
How many double bonds in the compound?16125 - 12. Multiple ChoiceWhat is the general formula of an alkene2n+2CnH2n+2CnH2nCnHn
- 13. Multiple ChoiceWhat is the process of breaking down a long hydrocarbon into smaller hydrocarbonsCrackingFrackingCombustionOxidationDistillation
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