Question 1

An AX3E2 molecule has a trigonal planar shape.

Accepted Answer

A) True 
 B)False

Question 2

All the following are polar except

Accepted Answer

A) ClF3. 
B) COCl2. 
C) BO33- 
D) BrO3-  
E) O3.  
A) ClF3. 
B) COCl2. 
C) BO33- 
D) BrO3-  
E) O3.

Question 3

For the Lewis structure of the cyanamide ion that contains two double bonds,N=C=NH-,the hybrid orbitals used by the underlined nitrogen atom and the carbon atom,respectively,are

Accepted Answer

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

Question 4

What is the bond order in the OH radical?

Accepted Answer

The answer of What is the bond order in the...

Question 5

Which of the following species has the shortest bond length?

Accepted Answer

A) NO2- 
B) NO2+  
C) NO- 
D) NO 
E) NO+  
A) NO2- 
B) NO2+  
C) NO- 
D) NO 
E) NO+

Question 6

Which of the following is polar?

Accepted Answer

A) XeF4  
B) PCl5  
C) ICl4-  
D) SF6  
E) IF5  
A) XeF4  
B) PCl5  
C) ICl4-  
D) SF6  
E) IF5

Question 7

Which of the following is polar?

Accepted Answer

A) NON 
B) XeF2  
C) XeO2  
D) ICl4- 
E) I3-  
A) NON 
B) XeF2  
C) XeO2  
D) ICl4- 
E) I3-

Question 8

Which of the following only has bond angles of 90S1U1P1$\circ$S1S1P0 and 180S1U1P1$\circ$S1S1P0?

Accepted Answer

A) IF5  
B) BrF3  
C) BCl3  
D) NO3-  
E) ICl4+ 
A) IF5  
B) BrF3  
C) BCl3  
D) NO3-  
E) ICl4+

Question 9

How many peaks would you predict for the photoelectron spectrum of water using 1)the molecular orbital model and 2)the VSEPR model?

Accepted Answer

molecular orbital,4;

Question 10

Which of the following is a p-type semiconductor?

Accepted Answer

A) Selenium doped with indium 
B) Silicon doped with arsenic 
C) GaAs with arsenic in excess of gallium 
D) Germanium doped with arsenic 
E) Silicon doped with phosphorus 
A) Selenium doped with indium 
B) Silicon doped with arsenic 
C) GaAs with arsenic in excess of gallium 
D) Germanium doped with arsenic 
E) Silicon doped with phosphorus

Question 11

The hybrid orbitals used by the underlined atoms in CH2CHCHO,from left to right,respectively,are

Accepted Answer

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

Question 12

All the following are polar except

Accepted Answer

A) S32- 
B) NH2- 
C) I3- 
D) O3-  
E) I3+ 
A) S32- 
B) NH2- 
C) I3- 
D) O3-  
E) I3+

Question 13

What is the shape of the molecule AX4E2?

Accepted Answer

A) Octahedral 
B) Tetrahedral 
C) Seesaw 
D) Square planar 
E) Square pyramidal 
A) Octahedral 
B) Tetrahedral 
C) Seesaw 
D) Square planar 
E) Square pyramidal

Question 14

What is the hybridization of the bolded atoms NNC,from left to right,in azidocarbonamide,H2NC(O)NNC(O)NH2?

Accepted Answer

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

Question 15

The hybrid orbitals used by the underlined atoms in CH3CH2OCH2CH3,from left to right,respectively,are

Accepted Answer

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

Question 16

The molecules OF2 and O3 both have bent shapes.What is the hybridization of the central atom in OF2 and O3,respectively?

Accepted Answer

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

Question 17

Draw the Lewis structure of formamide,NH2CHO,and give the number of lone pairs of electrons,and the number of  $\sigma$- and $\pi$-bonds.

Accepted Answer

3 lone pai

Question 18

What is the shape of IF4+?

Accepted Answer

A) Tetrahedral 
B) Seesaw 
C) Trigonal bipyramidal 
D) Square planar 
E) T-shaped 
A) Tetrahedral 
B) Seesaw 
C) Trigonal bipyramidal 
D) Square planar 
E) T-shaped

Question 19

The molecule cis-dichloroethene is nonpolar.

Accepted Answer

A) True 
 B)False

Question 20

The OSO bond angle in the sulfite ion is ___________________ (greater than/equal to/ less than)109.5S1U1P1$\circ$S1S1P0.

Accepted Answer

The answer of The OSO bond angle in the sulfite...

An AX₃E₂ molecule has a trigonal planar shape.

All the following are polar except

For the Lewis structure of the cyanamide ion that contains two double bonds,N=C=NH^-,the hybrid orbitals used by the underlined nitrogen atom and the carbon atom,respectively,are

What is the bond order in the OH radical?

Which of the following species has the shortest bond length?

Which of the following is polar?

Which of the following is polar?

Which of the following only has bond angles of 90^$\circ$ and 180^$\circ$?

How many peaks would you predict for the photoelectron spectrum of water using 1)the molecular orbital model and 2)the VSEPR model?

Which of the following is a p-type semiconductor?

The hybrid orbitals used by the underlined atoms in CH₂CHCHO,from left to right,respectively,are

All the following are polar except

What is the shape of the molecule AX₄E₂?

What is the hybridization of the bolded atoms NNC,from left to right,in azidocarbonamide,H₂NC(O)NNC(O)NH₂?

The hybrid orbitals used by the underlined atoms in CH₃CH₂OCH₂CH₃,from left to right,respectively,are

The molecules OF₂ and O₃ both have bent shapes.What is the hybridization of the central atom in OF₂ and O₃,respectively?

Draw the Lewis structure of formamide,NH₂CHO,and give the number of lone pairs of electrons,and the number of $\sigma$ - and $\pi$ -bonds.

What is the shape of IF₄⁺?

The molecule cis-dichloroethene is nonpolar.

The OSO bond angle in the sulfite ion is ___________________ (greater than/equal to/ less than)109.5^$\circ$.

The Quantum World

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Chemical Bonds

The Properties of Gases

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Exam 4: Molecular Shape and Structure

An AX3E2 molecule has a trigonal planar shape.

All the following are polar except

For the Lewis structure of the cyanamide ion that contains two double bonds,N=C=NH-,the hybrid orbitals used by the underlined nitrogen atom and the carbon atom,respectively,are

What is the bond order in the OH radical?

Which of the following species has the shortest bond length?

Which of the following is polar?

Which of the following is polar?

Which of the following only has bond angles of 90 ∘\circ∘ and 180 ∘\circ∘ ?

How many peaks would you predict for the photoelectron spectrum of water using 1)the molecular orbital model and 2)the VSEPR model?

Which of the following is a p-type semiconductor?

The hybrid orbitals used by the underlined atoms in CH2CHCHO,from left to right,respectively,are

All the following are polar except

What is the shape of the molecule AX4E2?

What is the hybridization of the bolded atoms NNC,from left to right,in azidocarbonamide,H2NC(O)NNC(O)NH2?

The hybrid orbitals used by the underlined atoms in CH3CH2OCH2CH3,from left to right,respectively,are

The molecules OF2 and O3 both have bent shapes.What is the hybridization of the central atom in OF2 and O3,respectively?

Draw the Lewis structure of formamide,NH2CHO,and give the number of lone pairs of electrons,and the number of σ\sigmaσ - and π\piπ -bonds.

What is the shape of IF4+?

The molecule cis-dichloroethene is nonpolar.

The OSO bond angle in the sulfite ion is ___________________ (greater than/equal to/ less than)109.5 ∘\circ∘ .

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

The Properties of Gases

Liquids and Solids

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

Filters

An AX₃E₂ molecule has a trigonal planar shape.

For the Lewis structure of the cyanamide ion that contains two double bonds,N=C=NH^-,the hybrid orbitals used by the underlined nitrogen atom and the carbon atom,respectively,are

Which of the following only has bond angles of 90^$\circ$ and 180^$\circ$?

The hybrid orbitals used by the underlined atoms in CH₂CHCHO,from left to right,respectively,are

What is the shape of the molecule AX₄E₂?

What is the hybridization of the bolded atoms NNC,from left to right,in azidocarbonamide,H₂NC(O)NNC(O)NH₂?

The hybrid orbitals used by the underlined atoms in CH₃CH₂OCH₂CH₃,from left to right,respectively,are

The molecules OF₂ and O₃ both have bent shapes.What is the hybridization of the central atom in OF₂ and O₃,respectively?

Draw the Lewis structure of formamide,NH₂CHO,and give the number of lone pairs of electrons,and the number of $\sigma$ - and $\pi$ -bonds.

What is the shape of IF₄⁺?

The OSO bond angle in the sulfite ion is ___________________ (greater than/equal to/ less than)109.5^$\circ$.