Which of the following correctly describes the relationship between the dextrorotatory/levorotatory system and the +/- system associated with optically active compounds?
A) All dextrorotatory compounds are (+).
B) All levorotatory compounds are (+).
C) No levorotatory compounds are +, but some dextrorotatory compounds are (-).
D) There is no general relationship between the dextrorotatory/levorotatory designations and the +/- designations.
A
You might also like to view...
Radiolarians and diatoms are both examples of ____
A) organisms that are only found in tropical parts of the ocean B) multi-celled animals C) creatures whose shells form siliceous oozes D) calcareous oozes in the deepest parts of the ocean
NAFTA (North American Free Trade Agreement) is an agreement that does what?
A) Allows the free migration of people between countries in North America B) Limits tariffs and trade restrictions C) Ensures that all countries have strong environmental and workers rights regulations D) All of the above
An island arc is associated with which type of geological feature?
A. Convergent tectonic plate boundary B. Transform tectonic plate boundary C. Divergent tectonic plate boundary D. Continent-continent collision
What is glacial flour?
A. one of the stages of glacial ice formation B. finely ground rock that is part of a glacier’s load C. general term for all material moved by glaciers D. all sized particles that are part of a glacier’s load E. huge boulders deposited by retreating glaciers