Question 1

What hybrid orbitals are used by the N atoms in urea,H2NCONH2?

Accepted Answer

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

Question 2

Name all the angles in a trigonal planar geometry.

Accepted Answer

The answer of Name all the angles in a trigonal...

Question 3

What is the approximate NNC bond angle in azidocarbonamide,H2NC(O)NNC(O)NH2?

Accepted Answer

A) 118S1U1P1$\circ$S1S1P0 
B) 180S1U1P1$\circ$S1S1P0 
C) 90S1U1P1$\circ$S1S1P0 
D) 107S1U1P1$\circ$S1S1P0 
E) 109S1U1P1$\circ$S1S1P0 
A) 118S1U1P1$\circ$S1S1P0 
B) 180S1U1P1$\circ$S1S1P0 
C) 90S1U1P1$\circ$S1S1P0 
D) 107S1U1P1$\circ$S1S1P0 
E) 109S1U1P1$\circ$S1S1P0

Question 4

Which of the following has bond angles slightly less than 120S1U1P1$\circ$S1S1P0?

Accepted Answer

A) SO3  
B) SF2  
C) I3-  
D) NO3-  
E) O3  
A) SO3  
B) SF2  
C) I3-  
D) NO3-  
E) O3

Question 5

Which of the following is polar?

Accepted Answer

A) CO32- 
B) O3  
C) XeF2  
D) I3-  
E) NON 
A) CO32- 
B) O3  
C) XeF2  
D) I3-  
E) NON

Question 6

All the following have an angular shape except

Accepted Answer

A) N3-. 
B) ClO2-. 
C) S32-. 
D) HOCl. 
E) NH2-. 
A) N3-. 
B) ClO2-. 
C) S32-. 
D) HOCl. 
E) NH2-.

Question 7

Which of the following molecules is (are)polar? 
(a)AsCl4+ 
(b)I3+ 
(c)I3-
(d)N3-
(e)S32-

Accepted Answer

A) (b)and (e) 
B) (b)and (c) 
C) (c)and (e) 
D) only (e) 
A) (b)and (e) 
B) (b)and (c) 
C) (c)and (e) 
D) only (e)

Question 8

What is the ground-state electron configuration of O2-?

Accepted Answer

( @#LAT-DLM&₂_s)²(

Question 9

In NO,the unpaired electron occupies what type of molecular orbital?

Accepted Answer

A) 3σ 
B) 4σ* 
C) 2π* 
D) 1π 
E) The oxygen 2p orbital. 
A) 3σ 
B) 4σ* 
C) 2π* 
D) 1π 
E) The oxygen 2p orbital.

Question 10

Predict the HNH bond angle in NH2-

Accepted Answer

The answer of Predict the HNH bond angle in NH2-...

Question 11

The hybrid orbitals used by the underlined atoms in CH3CHCHCN,from left to right,respectively,are

Accepted Answer

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

Question 12

All of the following are polar except

Accepted Answer

A) NO2−.  
B) SO32−.  
C) NO2Cl. 
D) NO3−.  
E) N2O (N is the central atom).  
A) NO2−.  
B) SO32−.  
C) NO2Cl. 
D) NO3−.  
E) N2O (N is the central atom).

Question 13

All the following are paramagnetic except

Accepted Answer

A) O2+. 
B) O2-. 
C) N22+. 
D) N22- 
E) O2. 
A) O2+. 
B) O2-. 
C) N22+. 
D) N22- 
E) O2.

Question 14

Which of the following has bond angles slightly less than 120S1U1P1$\circ$S1S1P0?

Accepted Answer

A) NO3-  
B) HO2-  
C) NO2-  
D) CS32-  
E) I3+ 
A) NO3-  
B) HO2-  
C) NO2-  
D) CS32-  
E) I3+

Question 15

Gallium is a semiconductor.Which of the following should be added in small amounts to produce a p-type semiconductor?

Accepted Answer

A) Si 
B) Sb 
C) B 
D) P 
E) As 
A) Si 
B) Sb 
C) B 
D) P 
E) As

Question 16

Which of the following would have the longest bond?
A)B2 
B)C2 
C)N2 
D)C22-
E)N22-

Accepted Answer

The answer of Which of the following would have the...

Question 17

Two Lewis structures can be written for diazomethane,where the arrangement of atoms is H2C-N-N.The hybrid orbitals used by the bold atoms in these Lewis structures are

Accepted Answer

A) sp3 or sp2,and sp. 
B) sp2 and sp. 
C) sp3 and sp. 
D) sp3 or sp2,and sp2. 
A) sp3 or sp2,and sp. 
B) sp2 and sp. 
C) sp3 and sp. 
D) sp3 or sp2,and sp2.

Question 18

What are the electron arrangements around the central atom and the shape,respectively,of SF4?

Accepted Answer

A) Trigonal bipyramidal and seesaw 
B) Both tetrahedral 
C) Octahedral and square pyramidal 
D) Both square pyramidal 
E) Seesaw 
A) Trigonal bipyramidal and seesaw 
B) Both tetrahedral 
C) Octahedral and square pyramidal 
D) Both square pyramidal 
E) Seesaw

Question 19

What is the shape of COCl2?

Accepted Answer

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

Question 20

What is the shape of AsF3?

Accepted Answer

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

What hybrid orbitals are used by the N atoms in urea,H₂NCONH₂?

Name all the angles in a trigonal planar geometry.

What is the approximate NNC bond angle in azidocarbonamide,H₂NC(O)NNC(O)NH₂?

Which of the following has bond angles slightly less than 120^$\circ$?

Which of the following is polar?

All the following have an angular shape except

Which of the following molecules is (are)polar? (a)AsCl₄⁺ (b)I₃⁺ (c)I₃^- (d)N₃^- (e)S₃²^-

What is the ground-state electron configuration of O₂^-?

In NO,the unpaired electron occupies what type of molecular orbital?

Predict the HNH bond angle in NH₂^-

The hybrid orbitals used by the underlined atoms in CH₃CHCHCN,from left to right,respectively,are

All of the following are polar except

All the following are paramagnetic except

Which of the following has bond angles slightly less than 120^$\circ$?

Gallium is a semiconductor.Which of the following should be added in small amounts to produce a p-type semiconductor?

Which of the following would have the longest bond? A)B₂ B)C₂ C)N₂ D)C₂²^- E)N₂²^-

Two Lewis structures can be written for diazomethane,where the arrangement of atoms is H₂C-N-N.The hybrid orbitals used by the bold atoms in these Lewis structures are

What are the electron arrangements around the central atom and the shape,respectively,of SF₄?

What is the shape of COCl₂?

What is the shape of AsF₃?

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Exam 4: Molecular Shape and Structure

What hybrid orbitals are used by the N atoms in urea,H2NCONH2?

Name all the angles in a trigonal planar geometry.

What is the approximate NNC bond angle in azidocarbonamide,H2NC(O)NNC(O)NH2?

Which of the following has bond angles slightly less than 120 ∘\circ∘ ?

Which of the following is polar?

All the following have an angular shape except

Which of the following molecules is (are)polar? (a)AsCl4+ (b)I3+ (c)I3- (d)N3- (e)S32-

What is the ground-state electron configuration of O2-?

In NO,the unpaired electron occupies what type of molecular orbital?

Predict the HNH bond angle in NH2-

The hybrid orbitals used by the underlined atoms in CH3CHCHCN,from left to right,respectively,are

All of the following are polar except

All the following are paramagnetic except

Which of the following has bond angles slightly less than 120 ∘\circ∘ ?

Gallium is a semiconductor.Which of the following should be added in small amounts to produce a p-type semiconductor?

Which of the following would have the longest bond? A)B2 B)C2 C)N2 D)C22- E)N22-

Two Lewis structures can be written for diazomethane,where the arrangement of atoms is H2C-N-N.The hybrid orbitals used by the bold atoms in these Lewis structures are

What are the electron arrangements around the central atom and the shape,respectively,of SF4?

What is the shape of COCl2?

What is the shape of AsF3?

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

What hybrid orbitals are used by the N atoms in urea,H₂NCONH₂?

What is the approximate NNC bond angle in azidocarbonamide,H₂NC(O)NNC(O)NH₂?

Which of the following has bond angles slightly less than 120^$\circ$?

Which of the following molecules is (are)polar? (a)AsCl₄⁺ (b)I₃⁺ (c)I₃^- (d)N₃^- (e)S₃²^-

What is the ground-state electron configuration of O₂^-?

Predict the HNH bond angle in NH₂^-

The hybrid orbitals used by the underlined atoms in CH₃CHCHCN,from left to right,respectively,are

Which of the following has bond angles slightly less than 120^$\circ$?

Which of the following would have the longest bond? A)B₂ B)C₂ C)N₂ D)C₂²^- E)N₂²^-

Two Lewis structures can be written for diazomethane,where the arrangement of atoms is H₂C-N-N.The hybrid orbitals used by the bold atoms in these Lewis structures are

What are the electron arrangements around the central atom and the shape,respectively,of SF₄?

What is the shape of COCl₂?

What is the shape of AsF₃?