Question 1

All possible resonance structures contribute equally to the resonance hybrid.

Accepted Answer

A) True 
 B)False

Question 2

In which one of the following is the best Lewis structure a resonance structure?

Accepted Answer

A)   SO3
B)   BF3
C)   I3¯
D)   SCO (C = central atom) 
E)   SO32¯F) A) and B)
G) C) and D)

Question 3

Use VSEPR theory to decide which one of the following molecules and ions will definitely have at least one 90  °\degree°  bond angle in it. (In each case except water, the central atom is the first one in the formula.)

Accepted Answer

A)   AlCl4¯
B)   NH3
C)   PCl5
D)   CO2
E)   H2O F) A) and D)
G) C) and D)

Question 4

How many resonance structures are possible for NO3¯?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5F) C) and E)
G) B) and D)

Question 5

A molecule which contains polar bonds will always have a dipole moment.

Accepted Answer

A) True 
 B)False

Question 6

What is the molecular shape of ClO3F as predicted by the VSEPR theory? 3F as predicted by the VSEPR theory?   A)  trigonal pyramidal B)  square planar C)  square pyramidal D)  tetrahedral E)  octahedral" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   trigonal pyramidal
B)   square planar
C)   square pyramidal
D)   tetrahedral
E)   octahedralF) B) and E)
G) B) and D)

Question 7

Draw Lewis structures which obey the octet rule, for the following atoms, molecules and ions, showing all valence electrons. Central atoms are shown in bold.
A) NH3
b. O3 (Hint: O3 is not cyclic)
C) HCN
D) SO3

Accepted Answer

Question 8

Select the correct Lewis structure for TeBr2.

Accepted Answer

A)   2. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
B)   2. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
C)   2. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
D)   2. 
A)     
B)     
C)     
D)     
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E)   2. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >F) A) and C)
G) A) and B)

Exam 10: The Shapes of Molecules

Select the correct Lewis structure for TeBr₂.

Correct Answer
verified

Draw Lewis structures which obey the octet rule, for the following atoms, molecules and ions, showing all valence electrons. Central atoms are shown in bold. A) NH₃b. O₃ (Hint: O₃ is not cyclic) C) HCN D) SO₃

Correct Answer
verified

What is the molecular shape of ClO₃F as predicted by the VSEPR theory?

Correct Answer
verified

A molecule which contains polar bonds will always have a dipole moment.

Correct Answer
verified

How many resonance structures are possible for NO₃^¯?

Correct Answer
verified

All possible resonance structures contribute equally to the resonance hybrid.

Correct Answer
verified

Use VSEPR theory to decide which one of the following molecules and ions will definitely have at least one 90 $\degree$ bond angle in it. (In each case except water, the central atom is the first one in the formula.)

Correct Answer
verified

In which one of the following is the best Lewis structure a resonance structure?

Correct Answer
verified

Exam 10: The Shapes of Molecules

Select the correct Lewis structure for TeBr2.

Correct AnswerverifiedShow Answer

Draw Lewis structures which obey the octet rule, for the following atoms, molecules and ions, showing all valence electrons. Central atoms are shown in bold. A) NH3 b. O3 (Hint: O3 is not cyclic) C) HCN D) SO3

Correct AnswerverifiedShow Answer

What is the molecular shape of ClO3F as predicted by the VSEPR theory?

Correct AnswerverifiedShow Answer

A molecule which contains polar bonds will always have a dipole moment.

Correct AnswerverifiedShow Answer

How many resonance structures are possible for NO3¯?

Correct AnswerverifiedShow Answer

All possible resonance structures contribute equally to the resonance hybrid.

Correct AnswerverifiedShow Answer

Use VSEPR theory to decide which one of the following molecules and ions will definitely have at least one 90 °\degree° bond angle in it. (In each case except water, the central atom is the first one in the formula.)

Correct AnswerverifiedShow Answer

In which one of the following is the best Lewis structure a resonance structure?

Correct AnswerverifiedShow Answer

Select the correct Lewis structure for TeBr₂.

Correct Answer
verified

Draw Lewis structures which obey the octet rule, for the following atoms, molecules and ions, showing all valence electrons. Central atoms are shown in bold. A) NH₃b. O₃ (Hint: O₃ is not cyclic) C) HCN D) SO₃

Correct Answer
verified

What is the molecular shape of ClO₃F as predicted by the VSEPR theory?

Correct Answer
verified

Correct Answer
verified

How many resonance structures are possible for NO₃^¯?

Correct Answer
verified

Correct Answer
verified

Use VSEPR theory to decide which one of the following molecules and ions will definitely have at least one 90 $\degree$ bond angle in it. (In each case except water, the central atom is the first one in the formula.)

Correct Answer
verified

Correct Answer
verified