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- 1. Multiple Choice
What arrangement do graphene atoms have?
A hexagonal arrangement
A cubic volume-centered arrangement
A face-centered cubic arrangement
- 2. Multiple Choice
How many electrons does carbon have?
6
7
8
9
- 3. Multiple Choice
What is the chemical symbol of carbon?
Ca
C
Cr
Cu
Cf
- 4. Multiple Choice
Which form of pure carbon is formed of layers that slide past one another?
diamond
graphite
fullerene
nanotube
- 5. Multiple Choice
Covalent bonding is when
electrons between two atoms are shared
Electrons between three atoms are shared
Electrons are borrowed between two atoms
Electrons are given between two atoms
- 6. Multiple ChoiceDefine the term allotropesAtoms with same proton number but different number of neutronsAtoms with same proton number but different mass numberAtoms in different arrangement in structureAtoms in different arrangement and different physical form
- 7. Multiple ChoiceWhich consists of carbon atoms?graphitediamondfullereneall of these
- 8. Multiple ChoiceWhich has a 2D hexagonal layered structure?graphitediamondfullereneall of these
- 9. Multiple ChoiceWhat structure is shown in the diagram?DiamondGraphite
- 10. Multiple Choice
Which has weak intermolecular forces in between its layers?
graphite
diamond
fullerene
none of these
- 11. Multiple ChoiceWhich has a free delocalized electron between layers that gives rise to electrical conductivity ?graphitediamondfullerenenone of these
- 12. Multiple ChoiceWhich is used in pencils ?graphitediamondfullerenenone of these
- 13. Multiple Choice
Which has a 3D tetrahedral structure?
graphite
diamond
fullerene
none of these
- 14. Multiple ChoiceWhich is used as a cutting tool and in jewelry?graphitediamondfullerenenone of these
- 15. Multiple ChoiceWhich has the formula C60?graphitediamondfullerenenone of these
- 16. Multiple ChoiceWhich is made of balls or cages of carbon?graphitediamondfullerenenone of these
- 17. Multiple ChoiceWhich of the following is true about C60 ?Each carbon bonded covalently to 3 other carbon atoms in a hexagonal ball like structureEach carbon bonded covelently to 4 other carbon atoms in layersa giant lattice structurepentagonal in shape
- 18. Multiple ChoiceWhat structure is shown in the diagram?DiamondGraphitefullerene
- 19. Multiple ChoiceWhich statement is a true comparison of diamonds and graphite?diamonds are extremely hard and colorless where as graphite is a very soft gray substance.diamonds are extremely soft and colorless where as graphite is a very hard gray substance.Diamonds are made only from carbon where as graphite is a carbon compound containing metal electrons
- 20. Multiple ChoiceWhat is the chemical formula for the molecule in the image, carbon dioxide?H2OCO2COCH4
- 21. Multiple ChoiceCarbon dioxide is a small molecule. Which of the following is a property of small molecules?conduct electricityform latticeshigh boiling pointlow melting point
- 22. Multiple ChoiceGraphene is a single layer of graphite. The bonds between the atoms in graphene are:ioniccovalentmetallic
- 23. Multiple ChoiceGraphene is made of ________ atoms.chlorinechromiumcarbonsilicon
- Answer choicesTagsAnswer choicesTags