Quiz  /  Organic Chemistry Class 11 MCQ Questions With Answers

  • 1. 
    What kind of molecule is this?

  • alkane
  • alkene
  • alkyne
  • cycloalkane

  • 2. 
    Select the formula for the following name: Butanol

  • C4H9OH
  • C4H10OH
  • C4H10
  • C4H7OH

  • 3. 
    What is the prefix for four carbons?

  • meth-
  • but-
  • prop-
  • eth-

  • 4. 
    Select the correct name of the following formula. C6H11NH2

  • Hexanamine
  • Hexene
  • Hexenol
  • Hexenamine

  • 5. 
    Which of the following must be true about ethanol?

  • It has an amine functional group
  • It is made from a 3 carbon chain
  • It contains only single bonds
  • All the above are true

  • 6. 
    Which of the following compounds is an example of hydrocarbon?

  • CO2
  • C2H6
  • C2H5OH
  • CH3COOH

  • 7. 
    Select the formula for the following name: Carbonic Acid

  • H2CO3
  • HCO3
  • H4C
  • HC

  • 8. 
    Organic compounds made only of the elements carbon and hydrogen are called...

  • Hydrocarbons
  • Carbohydrogens
  • Carbohydrates
  • Hydrocarbonates

  • 9. 
    Which two elements do all organic compounds contain?

  • Carbon and hydrogen
  • Carbon and oxygen
  • Oxygen and hydrogen
  • Carbon and nitrogen

  • 10. 
    What is the name of the alkane shown here?

  • Methane
  • Ethane
  • Propane
  • Butane

  • 11. 
    Which type of bonding is present within organic molecules?

  • Covalent bond
  • Ionic bond
  • Metallic bond
  • Hydrogen bond

  • 12. 
    The first four alkanes are listed below. In which list are they placed in the correct order, i.e. increasing number of carbon atoms?

  • methane, ethane, propane, butane
  • ethane, methane, propane, butane
  • methane, ethane, butane, propane
  • methane, propane, ethane, butane

  • 13. 
    Which is the correct general formula for the alkanes?

  • CnH2n+2
  • CnH2n
  • CnH2n+1OH
  • CnH2n+1COOH

  • 14. 
    Find the mistakes

  • Hexanona
  • 4 etil 3,7 dimetil 3 Octanaldehido
  • pentanil eter
  • All Of above

  • 15. 
    The "ending" nona correspond to...

  • Cetonas / ketones
  • alcanonas / alkenones
  • nonanonas / nonenes
  • we didn´t use this

  • 16. 
    Think that the pink particle is Carbon and the white particles are Hydrogens.What is their name ?

  • we can't name because is't a carbon chain
  • Metil
  • Metano
  • Is a mistake

  • 17. 
    What is the functional group of an ester ?

  • R-O=C | C-R'
  • R - C = O | O - R'
  • R-C=O | C
  • R-C=O | C-R'

  • 18. 
    If you have a carbon chain of 7 carbons, What is the name?

  • eptano
  • hexano
  • heptano
  • hebtano

  • 19. 
    The following functional group correspond to :R - O - R'

  • Ester
  • aldehido
  • éter
  • cetona

  • 20. 
    When we speak about "aldehydes" we can write the ending "-aldehido" or the ending "-al", it's correct?

  • Yes, both are correct, it's so clear
  • NO, teacher are you crazy?
  • Maybe, but in Colombia we only use one.
  • I don't know, i was asleep in that class

  • 21. 
    What is the correct name?C-C-C-C=C-C-C-C-C=C-C

  • 9- Ino, 4 Undeceno
  • 7-eno, 2-ino Undecano
  • 7-eno, 2 Undecino
  • Is a mistake

  • 22. 
    If yo find in a carbon chain a " = " you know that this is a ...

  • Alkane / Alcano
  • Alkene / Alquene
  • Alkyne / Alquino
  • we never write an "equal" in a carbon chain

  • 23. 
    What is the name of the following carbon chain ?C-C-C-C=C-C-C

  • 4 Hepteno
  • Hepteno
  • Heptano
  • 3 Hepteno

  • 24. 
    Can you have an double aldehyde in a carbon chain?

  • Yes!!! you can have two or more aldehyde groups in a carbon chain.
  • No, because if you have an double aldehyde the name change
  • No!! is imposible, you only can have an aldehyde.
  • Yes, you can.
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