Which of the following is a correct IUPAC name?
A) 2-chloro-3-bromotoluene
B) 3-bromo-2-chlorotoluene
C) 2-chloro-4-bromotoluene
D) 6-bromo-4-chlorotoluene
B
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Between 1850 and the present time, the global urban revolution resulted in urban population increasing from
a. 2% to 50% b. 7% to 62% c. 14% to 43% d. 15% to 92% e. 25% to 95%
Zakat, or ________, is the third pillar of Islam, and expresses the responsibility of more prosperous Muslims to aid those less fortunate
A) prayer B) alms C) hard work D) welfare
Heavy rains and mudslides cause a river to change course, isolating two groups of lizards of the same species from one another. Over a long period of time ________
A) the groups will probably diverge genetically, and speciation may occur B) one or both groups will probably become invasive species C) one group will probably become an endemic species D) both groups will probably become native species E) one or both groups will probably emigrate
Low-latitude steppes with low-sun rainfall will probably be located ____
a. on the equatorward margins of the deserts b. on the poleward margins of the tropical wet climate c. on the poleward sides of the tropical deserts near the Mediterranean climate d. in coastal locations near cool ocean currents