Question 1

When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule,how are the electrons distributed in the resulting molecular orbitals?

Accepted Answer

A)  Two electrons in the bonding molecular orbital.
B)  One electron in the bonding molecular orbital,one electron in the non-bonding molecular orbital.
C)  One electron in the bonding molecular orbital,one electron in the antibonding molecular orbital.
D)  Two electrons in the non-bonding molecular orbital.
E)  Two electrons in the antibonding molecular orbital.F) None of the above
G) B) and C)

Question 2

Which of the following is a set of constitutional isomers?

Accepted Answer

A)  I and II
B)  II and III
C)  I,II,and III
D)  II,III,and IV
E)  I,III,and IVF) D) and E)
G) C) and E)

Question 3

An orbital is defined as a region of space where the probability of ___ is high.

Accepted Answer

The answer of An orbital is defined as a region...

Question 4

2O B) H2Se C) H2S D) BeH2 E) There is no exception." class="answers-bank-image d-inline" rel="preload" > is a generalized structural representation which can be used for all of the following,except:

Accepted Answer

A)  H2O
B)  H2Se
C)  H2S
D)  BeH2
E)  There is no exception.F) All of the above
G) A) and E)

Question 5

Which molecule would be linear? (In each case you should write a Lewis structure before deciding.)

Accepted Answer

A)  SO2
B)  HCN
C)  H2O2
D)  H2S
E)  OF2F) None of the above
G) A) and B)

Question 6

Which of the following compounds contain a sulfur atom that bears a +1 formal charge?

Accepted Answer

A)  H2S
B)  SO2
C)  SF6
D)  MgSO4
E)  H2SO4F) A) and E)
G) B) and E)

Question 7

Identify the atomic orbital the lone pair electrons on the O atom are contained in: 2 B) 2sp3 C) 2sp D) 2s E) 2p" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  2sp2
B)  2sp3
C)  2sp
D)  2s
E)  2pF) B) and E)
G) A) and D)

Question 8

Determine the bond angles (I - IV)on the following structure based according to the VSEPR theory.

Accepted Answer

I = 109.5^o,...

Question 9

Identify the atomic orbitals in the N-O sigma bond in the following oxime: 2,2sp2)  B) (2sp3,2sp3)  C) (2sp,2sp)  D) (2sp2,2sp3)  E) (2sp,1s) " class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  (2sp2,2sp2) 
B)  (2sp3,2sp3) 
C)  (2sp,2sp) 
D)  (2sp2,2sp3) 
E)  (2sp,1s) F) A) and E)
G) A) and D)

Question 10

According to molecular orbital theory,which molecule could not exist?

Accepted Answer

A)  H2
B)  He2
C)  Li2
D)  F2
E)  N2F) C) and D)
G) B) and E)

Question 11

Select the most electronegative element from the list below.

Accepted Answer

A)  H
B)  O
C)  N
D)  B
E)  CF) A) and C)
G) All of the above

Question 12

Which structure(s) contain(s) an oxygen that bears a formal charge of +1?

Accepted Answer

A)  I and II
B)  III and IV
C)  V
D)  II
E)  I and VF) A) and D)
G) B) and D)

Question 13

What is the formal charge on oxygen in the following structure?

Accepted Answer

A)  +2
B)  +1
C)  0
D)  -1
E)  -2F) None of the above
G) A) and D)

Question 14

When atomic orbitals of opposite phase overlap a(n)___ molecular orbital is formed.

Accepted Answer

The answer of When atomic orbitals of opposite phase overlap...

Question 15

What would be the spatial arrangement (shape) of the atoms of the methyl anion :CH3-?

Accepted Answer

A)  octahedral
B)  tetrahedral
C)  trigonal planar
D)  linear
E)  trigonal pyramidalF) A) and B)
G) None of the above

Question 16

How many electrons contribute to pi bonds in the following compound?

Accepted Answer

A)  0
B)  3
C)  6
D)  7
E)  None of these choices.F) A) and E)
G) A) and D)

Question 17

The bond angle for the C-C-H bonds in CH3CN would be expected to be approximately:

Accepted Answer

A)  90 ∘\circ∘ 
B)  109 ∘\circ∘ 
C)  120 ∘\circ∘ 
D)  145 ∘\circ∘ 
E)  180 ∘\circ∘  F) A) and E)
G) B) and E)

Question 18

Constitutional isomers differ in the ___.

Accepted Answer

connectivi...

Exam 1: The Basics

Which of the following compounds contain a sulfur atom that bears a +1 formal charge?

Correct Answer
verified

What is the formal charge on oxygen in the following structure?

Correct Answer
verified

An orbital is defined as a region of space where the probability of ___ is high.

Correct Answer
verified

is a generalized structural representation which can be used for all of the following,except:

Correct Answer
verified

Constitutional isomers differ in the ___.

Correct Answer
verified
connectivi...
View Answer

Which structure(s) contain(s) an oxygen that bears a formal charge of +1?

Correct Answer
verified

Determine the bond angles (I - IV)on the following structure based according to the VSEPR theory.

Correct Answer
verified
I = 109.5^o,...
View Answer

Identify the atomic orbital the lone pair electrons on the O atom are contained in:

Correct Answer
verified

When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule,how are the electrons distributed in the resulting molecular orbitals?

Correct Answer
verified

Which molecule would be linear? (In each case you should write a Lewis structure before deciding.)

Correct Answer
verified

What would be the spatial arrangement (shape) of the atoms of the methyl anion :CH₃^-?

Correct Answer
verified

When atomic orbitals of opposite phase overlap a(n)___ molecular orbital is formed.

Correct Answer
verified

Which of the following is a set of constitutional isomers?

Correct Answer
verified

According to molecular orbital theory,which molecule could not exist?

Correct Answer
verified

Identify the atomic orbitals in the N-O sigma bond in the following oxime:

Correct Answer
verified

How many electrons contribute to pi bonds in the following compound?

Correct Answer
verified

Select the most electronegative element from the list below.

Correct Answer
verified

The bond angle for the C-C-H bonds in CH₃CN would be expected to be approximately:

Correct Answer
verified

Exam 1: The Basics

Which of the following compounds contain a sulfur atom that bears a +1 formal charge?

Correct AnswerverifiedShow Answer

What is the formal charge on oxygen in the following structure?

Correct AnswerverifiedShow Answer

An orbital is defined as a region of space where the probability of ___ is high.

Correct AnswerverifiedShow Answer

is a generalized structural representation which can be used for all of the following,except:

Correct AnswerverifiedShow Answer

Constitutional isomers differ in the ___.

Correct Answerverifiedconnectivi...View AnswerShow Answer

Which structure(s) contain(s) an oxygen that bears a formal charge of +1?

Correct AnswerverifiedShow Answer

Determine the bond angles (I - IV)on the following structure based according to the VSEPR theory.

Correct AnswerverifiedI = 109.5o,...View AnswerShow Answer

Identify the atomic orbital the lone pair electrons on the O atom are contained in:

Correct AnswerverifiedShow Answer

When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule,how are the electrons distributed in the resulting molecular orbitals?

Correct AnswerverifiedShow Answer

Which molecule would be linear? (In each case you should write a Lewis structure before deciding.)

Correct AnswerverifiedShow Answer

What would be the spatial arrangement (shape) of the atoms of the methyl anion :CH3-?

Correct AnswerverifiedShow Answer

When atomic orbitals of opposite phase overlap a(n)___ molecular orbital is formed.

Correct AnswerverifiedShow Answer

Which of the following is a set of constitutional isomers?

Correct AnswerverifiedShow Answer

According to molecular orbital theory,which molecule could not exist?

Correct AnswerverifiedShow Answer

Identify the atomic orbitals in the N-O sigma bond in the following oxime:

Correct AnswerverifiedShow Answer

How many electrons contribute to pi bonds in the following compound?

Correct AnswerverifiedShow Answer

Select the most electronegative element from the list below.

Correct AnswerverifiedShow Answer

The bond angle for the C-C-H bonds in CH3CN would be expected to be approximately:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
connectivi...
View Answer

Correct Answer
verified

Correct Answer
verified
I = 109.5^o,...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

What would be the spatial arrangement (shape) of the atoms of the methyl anion :CH₃^-?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The bond angle for the C-C-H bonds in CH₃CN would be expected to be approximately:

Correct Answer
verified