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Question 1: The most common terpenes in resin are the bicyclic terpenes alpha-pinene, beta-pinene, delta-3 carene and sabinene, the monocyclic terpenes ________ and terpinolene, and smaller amounts of the tricyclic sesquiterpenes, longifolene, caryophyllene and delta-cadinene.
LimoneneMaleic anhydrideCymeneBiphenyl

Question 2: These are closely related to the terpenes, and derive from them through partial ________.
RedoxHydrogenCarbonOxygen

Question 3: ________ - resin from the Pistacia lentiscus tree
Middle EastMoroccoMastic (plant resin)Egypt

Question 4: Resins have a very long history and are mentioned by both ancient Greek Theophrastus and ancient Roman ________, especially as the forms known as frankincense and myrrh.
Roman NavyRoman EmpireCastraPliny the Elder

Question 5: Some resin distilleries in ________ exploded because they mistook Jeffrey Pine for the similar but terpene-producing Ponderosa Pine.
San Jose, CaliforniaLos AngelesSacramento, CaliforniaCalifornia

Question 6: It is valued for its chemical constituents and uses, such as varnishes and ________, as an important source of raw materials for organic synthesis, or for incense and perfume.
AdhesiveHot melt adhesivePolyurethanePolymer

Question 7: Many compound resins have distinct and characteristic odors, from their admixture with ________.
PerfumePeppermintAromatherapyEssential oil

Question 8: Certain resins are obtained in a fossilized condition, amber being the most notable instance of this class; African copal and the kauri gum of ________ are also procured in a semi-fossil condition.
AustraliaNauruUnited KingdomNew Zealand

Question 9: Some resins when soft are known as 'oleo-resins', and when containing ________ or cinnamic acid they are called balsams.
Acetic acidBenzeneEthanolBenzoic acid

Question 10: The resin produced by most plants is a viscous ________, composed mainly of volatile fluid terpenes, with lesser components of dissolved non-volatile solids which make resin thick and sticky.
ColloidLiquidSupercritical fluidPhase transition
















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