Org Chapter 1 Test Bank Exam Questions with Correct Answers
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Course
Organic Chemistry
Institution
Organic Chemistry
1) Which of the following best describes the origin of carbon atoms? - Answer-c) byproduct of chemical fusion in stars
3) The greatest degree of ionic character is anticipated for the bond between - Answer-b) H and Cl.
5) Select the most electronegative element from the list below. - Answer-b) O
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Org Chapter 1 Test Bank Exam
Questions with Correct Answers
1) Which of the following best describes the origin of carbon atoms? - Answer-c)
byproduct of chemical fusion in stars
3) The greatest degree of ionic character is anticipated for the bond between - Answer-
b) H and Cl.
5) Select the most electronegative element from the list below. - Answer-b) O
6) Which of these substances contain both covalent and ionic bonds? - Answer-a)
NH4Cl
9) In which of the following does the central atom have 2 pairs of non-bonding
electrons? - Answer-e) H2S
11) Which of these is a correct electron-dot representation of the nitrite ion, NO2-? -
Answer-a) I
13) Considering Lewis structures, which of these compounds possesses a single
unpaired electron? - Answer-c) NO
15) Expansion of the valence shell to accommodate more than eight electrons is
possible with ___. - Answer-d) sulfur
16) What is the formal charge on oxygen in the following structure? - Answer-b) +1
19) Which structure(s) contain(s) an oxygen that bears a formal charge of +1? - Answer-
b) III and IV
21) Which of the following molecules or ions has a nitrogen with a formal charge of -1? -
Answer-A
23) Which of the following is an ion with a negative one charge? - Answer-d) All of these
choices.
25) Listed below are electron dot formulas for several simple molecules and ions. All
valence electrons are shown; however, electrical charges have been omitted
deliberately.
Which of the structures actually bear(s) a positive charge? - Answer-e) IV and V
26) Listed below are electron dot formulas for several simple molecules and ions. All
valence electrons are shown; however, electrical charges have been omitted
deliberately.
Which of the structures is negatively charged? - Answer-b) II
29) Which compound contains a nitrogen atom with a formal positive charge? - Answer-
d) More than one of these choices.
31) CH3CH2OCH2CH3 and CH3CH2CH2CH2OH are examples of what are now
termed: - Answer-e) Constitutional isomers
33) Which compound is not a constitutional isomer of the others? - Answer-d) IV
35) Which of the following represent a pair of constitutional isomers? - Answer-e) More
than one of these choices.
36) Which of the following represent pairs of constitutional isomers? - Answer-e) All of
these pairs.
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