Question 1

What is the hybridization of the central atom in SF4?

Accepted Answer

A)   dsp3
B)   sp3
C)   d2sp3
D)   sp
E)   sp2

Question 2

In the molecular-orbital description of CO,

Accepted Answer

A)   the bond order is 3.
B)   six molecular orbitals contain electrons.
C)   there are two unpaired electrons.
D)   the highest energy electrons occupy antibonding orbitals.
E)   All of these are false.

Question 3

Which of the following is diamagnetic?

Accepted Answer

A)   F2+
B)   C2+
C)   H2+
D)   N2
E)   N2+

Question 4

Tetracyanoethylene has the skeleton shown here: 2 hybridized? A)  2 B)  4 C)  10 D)  8 E)  6 " class="answers-bank-image d-inline" rel="preload" > From its Lewis structure, determine the following.
-How many of the atoms are sp2 hybridized?

Accepted Answer

A)   2
B)   4
C)   10
D)   8
E)   6

Question 5

Consider the structure of glycine, the simplest amino acid: 3 sp3 sp2 B)  sp2 sp2 sp2 C)  sp3 sp3 sp3 D)  sp2 sp3 sp2 E)  none of these " class="answers-bank-image d-inline" rel="preload" > Indicate the hybridizations at each N and C atom in the molecule (in sequence from left to right) .

Accepted Answer

A)   sp3 sp3 sp2
B)   sp2 sp2 sp2
C)   sp3 sp3 sp3
D)   sp2 sp3 sp2
E)   none of these

Question 6

Describing the bonding in C2H6 requires what carbon hybridization?

Accepted Answer

A)   sp
B)   sp3
C)   dsp2
D)   d2sp3
E)   sp2 B

Question 7

Of the following homonuclear diatomic molecules, which is paramagnetic?

Accepted Answer

A)   C2
B)   B2
C)   F2
D)   N2
E)   None of the above B

Question 8

What is the hybridization of I in ICl2+?

Accepted Answer

A)   sp3
B)   dsp3
C)   sp2
D)   sp
E)   d2sp3

Question 9

Consider the following molecule. (Lone pairs are not drawn in.)  3 B)  sp3 C)  sp D)  sp2 E)  d2sp3 " class="answers-bank-image d-inline" rel="preload" >
-What is the hybridization of the carbon atom that is bonded to chlorine?

Accepted Answer

A)   dsp3
B)   sp3
C)   sp
D)   sp2
E)   d2sp3

Question 10

What is the hybridization of the I atom in the molecule IF5?

Accepted Answer

A)   sp
B)   sp3
C)   dsp3
D)   sp2
E)   d2sp3

Question 11

Which of the following has the shortest N-O bond?

Accepted Answer

A)   NO2-
B)   N2
C)   NO+
D)   NO3-
E)   none of these

Question 12

Specify the hybridization of the nitrogen atom in each of the following, in order. NO3-  N2  NO2-

Accepted Answer

A)   sp2, sp, sp2
B)   sp3, sp, sp
C)   sp2, sp, sp3
D)   sp3, sp2, sp3
E)   none of these

Question 13

Atoms that are sp3 hybridized form ____ pi bond(s) .

Accepted Answer

A)   1
B)   4
C)   2
D)   3
E)   0

Question 14

What is the hybridization of the central atom in ICl5?

Accepted Answer

A)   sp2
B)   d2sp3
C)   dsp3
D)   sp
E)   sp3 B

Question 15

Consider the following molecule. (Lone pairs are not drawn in.)  2 B)  d2sp3 C)  sp D)  sp3 E)  dsp3 " class="answers-bank-image d-inline" rel="preload" >
-What is the hybridization of the nitrogen atom?

Accepted Answer

A)   sp2
B)   d2sp3
C)   sp
D)   sp3
E)   dsp3

Question 16

Consider the molecular-orbital description of the NO- anion. Which of the following statements is false?

Accepted Answer

A)   The bond energy in NO+ is greater than the bond energy in NO-.
B)   The bond order in NO- is 2.
C)   NO- is isoelectronic with CO.
D)   NO- is paramagnetic.
E)   All of these statements are false.

Question 17

Oxygen is paramagnetic and has a bond order of two. Which of the following represents the ground electronic state for oxygen?

Accepted Answer

A)   
B)   
C)   
D)   A and C are equally probable
E)   None of the above

Question 18

The fact that O2 is paramagnetic can be explained by

Accepted Answer

A)   hybridization of atomic orbitals in O2.
B)   the Lewis structure of O2.
C)   the molecular-orbital diagram for O2.
D)   resonance.
E)   a violation of the octet rule.

Question 19

What is the hybridization of the phosphorus atom in PCl4+?

Accepted Answer

A)   dsp2
B)   sp2d
C)   d2sp3
D)   sp2
E)   sp3

Question 20

Consider the following Lewis structure. (Lone pairs are not drawn in.)  2 sp3 sp2 sp3 B)  sp sp3 sp sp C)  sp3 sp3 sp sp2 D)  sp sp2  sp sp2 E)  sp sp3 sp2 sp " class="answers-bank-image d-inline" rel="preload" > What are the hybridizations of the oxygen atom and of carbon atoms 1, 2, and 4, respectively (order: O C-1 C-2 C-4) ?

Accepted Answer

A)   sp2 sp3 sp2 sp3
B)   sp sp3 sp sp
C)   sp3 sp3 sp sp2
D)   sp sp2  sp sp2
E)   sp sp3 sp2 sp

Exam 14: Covalent Bonding: Orbitals

What is the hybridization of the central atom in SF4?

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In the molecular-orbital description of CO,

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Which of the following is diamagnetic?

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Tetracyanoethylene has the skeleton shown here: From its Lewis structure, determine the following. -How many of the atoms are sp2 hybridized?

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Consider the structure of glycine, the simplest amino acid: Indicate the hybridizations at each N and C atom in the molecule (in sequence from left to right) .

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Describing the bonding in C2H6 requires what carbon hybridization?

Correct AnswerverifiedB

Of the following homonuclear diatomic molecules, which is paramagnetic?

Correct AnswerverifiedB

What is the hybridization of I in ICl2+?

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Consider the following molecule. (Lone pairs are not drawn in.) -What is the hybridization of the carbon atom that is bonded to chlorine?

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What is the hybridization of the I atom in the molecule IF5?

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Which of the following has the shortest N-O bond?

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Specify the hybridization of the nitrogen atom in each of the following, in order. NO3- N2 NO2-

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Atoms that are sp3 hybridized form ____ pi bond(s) .

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What is the hybridization of the central atom in ICl5?

Correct AnswerverifiedB

Consider the following molecule. (Lone pairs are not drawn in.) -What is the hybridization of the nitrogen atom?

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Consider the molecular-orbital description of the NO- anion. Which of the following statements is false?

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Oxygen is paramagnetic and has a bond order of two. Which of the following represents the ground electronic state for oxygen?

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The fact that O2 is paramagnetic can be explained by

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What is the hybridization of the phosphorus atom in PCl4+?

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Consider the following Lewis structure. (Lone pairs are not drawn in.) What are the hybridizations of the oxygen atom and of carbon atoms 1, 2, and 4, respectively (order: O C-1 C-2 C-4) ?

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What is the hybridization of the central atom in SF₄?

Correct Answer
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Tetracyanoethylene has the skeleton shown here: From its Lewis structure, determine the following. -How many of the atoms are sp² hybridized?

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Describing the bonding in C₂H₆ requires what carbon hybridization?

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B

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B

What is the hybridization of I in ICl₂⁺?

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What is the hybridization of the I atom in the molecule IF₅?

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Specify the hybridization of the nitrogen atom in each of the following, in order. NO₃^- N₂ NO₂^-

Correct Answer
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Atoms that are sp³ hybridized form ____ pi bond(s) .

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What is the hybridization of the central atom in ICl₅?

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B

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Consider the molecular-orbital description of the NO^-anion. Which of the following statements is false?

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The fact that O₂ is paramagnetic can be explained by

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What is the hybridization of the phosphorus atom in PCl₄⁺?

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