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Alkane: Quiz


Question 1: On the other hand, certain ________, the methanogens, produce large quantities of methane by the metabolism of carbon dioxide or other oxidised organic compounds.

Question 2: Alkanes or alkyl groups can also be prepared directly from ________ in the Corey-House-Posner-Whitesides reaction.
AlkeneHaloalkaneAlcoholOrganofluorine chemistry

Question 3: This propensity to premature ignition is measured by the ________ of the fuel, where 2,2,4-trimethylpentane (isooctane) has an arbitrary value of 100, and heptane has a value of zero.
Internal combustion engineGasolineOctane ratingAvgas

Question 4: [9] Alkanes have also been detected in ________ such as carbonaceous chondrites.
MeteoriteImpact eventMeteoroidImpact crater

Question 5: The melting points of the alkanes follow a similar trend to ________ for the same reason as outlined above.
Critical point (thermodynamics)Phase transitionSupercritical fluidBoiling point

Question 6: Chiral alkanes are of certain importance in biochemistry, as they occur as sidechains in ________ and tocopherol (vitamin E).
PhotosynthesisChlorophyllPlant physiologyPlant

Question 7: With some kinds, as the support beetle Xylotrechus colonus, primarily ________ (C25H52), 3-methylpentaicosane (C26H54) and 9-methylpentaicosane (C26H54), they are transferred by body contact.
DecaneHigher alkanesDodecaneAlkane

Question 8: There is a further degree of freedom for each carbon – carbon bond: the ________ between the atoms or groups bound to the atoms at each end of the bond.
ProlinePolyhedronDNADihedral angle

Question 9: In the Reed reaction, sulfur dioxide, ________ and light convert hydrocarbons to sulfonyl chlorides.

Question 10:
When was the Alkane?
June 2009
December 2008
June 2009


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