Carbon: Quiz

  
  
  
  
  
















































Question 1: There are several ________ of which the best known are graphite, diamond, and amorphous carbon.
FullereneCarbon nanotubeAllotropes of carbonCarbon nanofoam

Question 2: [70][71] In 2004, a startling discovery of a microscopic diamond in the United States[72] led to the January 2008 bulk-sampling of kimberlite pipes in a remote part of ________.
MontanaWyomingWashingtonColorado

Question 3: with ________ to form carbon disulfide and with steam in the coal-gas reaction:
GoldOxygenArsenicSulfur

Question 4: [17] However, the process of separating it from ________ will require some technological development before it is economical enough to be used in industrial processes.
DiamondGraphiteCarbonCarbon nanotube

Question 5: The simplest form of an organic molecule is the ________—a large family of organic molecules that are composed of hydrogen atoms bonded to a chain of carbon atoms.
PetroleumAlkanePropaneHydrocarbon

Question 6: ________ of steel is achieved by heating finished steel components in carbon powder.
IronPhosphorusAlloy steelCase hardening

Question 7: In combination with oxygen in ________, carbon is found in the Earth's atmosphere (in quantities of approximately 810 gigatonnes) and dissolved in all water bodies (approximately 36,000 gigatonnes).
Carbon cycleCarbon sinkCarbon dioxideGreenhouse gas

Question 8: The resulting network is 2-dimensional, and the resulting flat sheets are stacked and loosely bonded through weak ________.
Van der Waals forceChemical bondLondon dispersion forceStacking (chemistry)

Question 9: One of the fusion mechanisms powering stars is the ________.
CNO cycleAlpha processS-processStellar nucleosynthesis

Question 10: This type of carbyne is of considerable interest to ________ as its Young's modulus is forty times that of the hardest known material - diamond.
NanoelectronicsNanotoxicologyDNA nanotechnologyNanotechnology
















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