Quiz  /  Alkyne Class 10 MCQ Questions With Answers

  • 1. 
    Which type of polymerisation uses two different monomers, both contain a functional group at each end?

  • addition polymerisation
  • condensation polymerisation

  • 2. 
    How many carbons are in the longest chain of the following molecule:

  • 11
  • 10
  • 9
  • 8

  • 3. 
    Hydrocarbons are compounds that contain

  • Carbon, only
  • Carbon and Hydrogen, only
  • Carbon, Oxygen, and Hydrogen, only
  • Carbon, Oxygen, Hydrogen, and Nitrogen, only

  • 4. 
    The general formula of an alkene is:

  • CnH2n
  • CnH2n+2
  • CnHn+2
  • CnH2n-2

  • 5. 
    Select the correct name of the following formula. C6H10

  • Hexane
  • Hexene
  • Hexanol
  • Hexyne

  • 6. 
    The name of the structure shown is :

  • pentane
  • hexane
  • heptane
  • octane

  • 7. 
    Small molecules that make up larger molecules

  • polymer
  • monomer
  • allotrope
  • functional group

  • 8. 
    Four molecules are shown.Which structure represents ethanol?

  • A
  • B
  • C
  • D

  • 9. 
    The general formula of an alkane is:

  • CnH2n
  • CnH2n+2
  • CnHn+2
  • CnH2n-2

  • 10. 
    Name this alkane

  • Methane
  • Ethane
  • Propane
  • Butane

  • 11. 
    Which formula represents an unsaturated hydrocarbon?

  • A
  • B
  • C
  • D

  • 12. 
    How many bonds does carbon make?

  • 1
  • 2
  • 3
  • 4

  • 13. 
    Name the following

  • 4-ethyl-6-methyl nonane
  • 3-propyl-5-methyl octane
  • 2,4-dipropyl hexane
  • 4-ethyl-2-propyl heptane

  • 14. 
    Which homolgous series contains only C-C single bonds?

  • alkanes
  • alkenes
  • alcohols
  • carboxylic acids

  • 15. 
    The longer the hydrocarbon, the _______ the boiling point

  • Lower
  • Higher

  • 16. 
    What is the name for this compound?

  • 4 - propylnonane
  • 4 - ethylnonane
  • 4 - propyloctane
  • 4 - ethyloctane

  • 17. 
    Select the formula for the following name: Octene

  • C8H16
  • C8H14
  • C8H18
  • C8H15OH

  • 18. 
    Which process produces molecules with longer chains?

  • combustion of hydrocarbon
  • cracking
  • fractional distillation of crude oil
  • polymerisation

  • 19. 
    Which of the following is the correct formula for a pentyne?

  • C5H8
  • C5H10
  • C5H12
  • C5H7OH

  • 20. 
    What is the general formula of an alkane

  • 2n+2
  • CnH2n+2
  • CnH2n
  • CnHn

  • 21. 
    Alkanes are known as saturated hydrocarbons because they contain only carbon-hydrogen single bonds.

  • True
  • False

  • 22. 
    What is the correct prefix for three carbons in an organic molecule?

  • prop
  • tri
  • tres
  • III
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