Question 1

What is the molecular shape of CH2O?

Accepted Answer

A) tetrahedral 
B) bent 
C) trigonal planar 
D) pyramidal 
A) tetrahedral 
B) bent 
C) trigonal planar 
D) pyramidal

Question 2

Which of the following is not tetrahedral?

Accepted Answer

A) carbon tetrachloride 
B) chloroform, CHCl3 
C) ethane, C2H6 
D) boron trifluoride 
A) carbon tetrachloride 
B) chloroform, CHCl3 
C) ethane, C2H6 
D) boron trifluoride

Question 3

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity.
-BF3

Accepted Answer

Question 4

The angle around boron in boron trifluoride is ________.

Accepted Answer

A) 60° 
B) 90° 
C) 109° 
D) 120° 
A) 60° 
B) 90° 
C) 109° 
D) 120°

Question 5

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity.
-CS2

Accepted Answer

Question 6

Which of the following sulfur-containing species is not polar?

Accepted Answer

A) SO3 
B) H2S 
C) HS- 
D) SOCl2 
A) SO3 
B) H2S 
C) HS- 
D) SOCl2

Question 7

Which of the following multiple-bond compounds is pure covalent?

Accepted Answer

A) H2CO 
B) Cl2SO 
C) O2 
D) CO 
A) H2CO 
B) Cl2SO 
C) O2 
D) CO

Question 8

Match between columns
                        Premises: HCS1U1B11S1U1B0
NHS1U1B13S1U1B0
BrS1U1B12S1U1B0
CSS1U1B12S1U1B0
HS1U1B12S1U1B0O
PClS1U1B13S1U1B0
SOS1U1B13S1U1B0
CS1U1B12S1U1B0HS1U1B12S1U1B0
COS1U1B12S1U1B0
HS1U1B12S1U1B0C=CHS1U1B12S1U1B0
CHS1U1B13S1U1B0CHS1U1B13S1U1B0
HS1U1B12S1U1B0S
CHS1U1B12S1U1B0ClS1U1B12S1U1B0
CClS1U1B14S1U1B0
CHS1U1B14S1U1B0
CHS1U1B13S1U1B0Cl

Accepted Answer

The Answer of non-polar and polar is...

Question 9

In a molecule having three pairs of electrons around a central atom and a planar triangle shape, how many lone pairs of electrons does the central atom have?

Accepted Answer

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

Question 10

Which of the following compounds contains bonds that are the most polar (greatest electronegativity difference between hydrogen and the central atom)?

Accepted Answer

A) H2O 
B) H2S 
C) H2Se 
D) H2Te 
A) H2O 
B) H2S 
C) H2Se 
D) H2Te

Question 11

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity.
-NO3-

Accepted Answer

Question 12

Which of the following will be the least soluble in water?

Accepted Answer

A) CH3OH 
B) CH4 
C) NH3 
D) CH3CH2OH 
A) CH3OH 
B) CH4 
C) NH3 
D) CH3CH2OH

Question 13

When drawing the three-dimensional structure diagram of a molecule the dotted line ________.

Accepted Answer

A) projects out from the page 
B) goes back behind the page 
C) the bond is in the plane of the page 
D) One cannot say unless the formula of the molecule is known. 
A) projects out from the page 
B) goes back behind the page 
C) the bond is in the plane of the page 
D) One cannot say unless the formula of the molecule is known.

Question 14

When naming the shape of a molecule count the lone pairs.

Accepted Answer

A) True 
 B)False

Question 15

Any molecule of the form AX3 is tetrahedral.

Accepted Answer

A) True 
 B)False

Question 16

Dipole dipole forces are an important factor to consider in determining whether or not a substance will dissolve in water (a molecule which has a dipole). Which of the following compounds would you expect to be the most soluble in water?

Accepted Answer

A) CCl4 
B) NH3 
C) N2 
D) CO2 
A) CCl4 
B) NH3 
C) N2 
D) CO2

Question 17

When drawing the three-dimensional structure diagram of a molecule the bold line goes back behind the page.

Accepted Answer

A) True 
 B)False

Question 18

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity.
-H2S

Accepted Answer

Question 19

Which of the following nitrogen-containing species is least polar?

Accepted Answer

A) NH3 
B) CH3 - N = N - CH3 
C) (CH3 CH2)3N 
D) (CH3)3N 
A) NH3 
B) CH3 - N = N - CH3 
C) (CH3 CH2)3N 
D) (CH3)3N

Question 20

Which of the following will be affected by the presence of an electric field?

Accepted Answer

A) H2 
B) O2 
C) HCl 
D) N2 
A) H2 
B) O2 
C) HCl 
D) N2

What is the molecular shape of CH₂O?

Which of the following is not tetrahedral?

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity. -BF₃

The angle around boron in boron trifluoride is ________.

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity. -CS₂

Which of the following sulfur-containing species is not polar?

Which of the following multiple-bond compounds is pure covalent?

In a molecule having three pairs of electrons around a central atom and a planar triangle shape, how many lone pairs of electrons does the central atom have?

Which of the following compounds contains bonds that are the most polar (greatest electronegativity difference between hydrogen and the central atom)?

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity. -NO₃^-

Which of the following will be the least soluble in water?

When drawing the three-dimensional structure diagram of a molecule the dotted line ________.

When naming the shape of a molecule count the lone pairs.

Any molecule of the form AX₃ is tetrahedral.

Dipole dipole forces are an important factor to consider in determining whether or not a substance will dissolve in water (a molecule which has a dipole). Which of the following compounds would you expect to be the most soluble in water?

When drawing the three-dimensional structure diagram of a molecule the bold line goes back behind the page.

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity. -H₂S

Which of the following nitrogen-containing species is least polar?

Which of the following will be affected by the presence of an electric field?

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

Exam 6: The Shape of Molecules

What is the molecular shape of CH2O?

Which of the following is not tetrahedral?

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity. -BF3

The angle around boron in boron trifluoride is ________.

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity. -CS2

Which of the following sulfur-containing species is not polar?

Which of the following multiple-bond compounds is pure covalent?

In a molecule having three pairs of electrons around a central atom and a planar triangle shape, how many lone pairs of electrons does the central atom have?

Which of the following compounds contains bonds that are the most polar (greatest electronegativity difference between hydrogen and the central atom)?

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity. -NO3-

Which of the following will be the least soluble in water?

When drawing the three-dimensional structure diagram of a molecule the dotted line ________.

When naming the shape of a molecule count the lone pairs.

Any molecule of the form AX3 is tetrahedral.

Dipole dipole forces are an important factor to consider in determining whether or not a substance will dissolve in water (a molecule which has a dipole). Which of the following compounds would you expect to be the most soluble in water?

When drawing the three-dimensional structure diagram of a molecule the bold line goes back behind the page.

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity. -H2S

Which of the following nitrogen-containing species is least polar?

Which of the following will be affected by the presence of an electric field?

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

What is the molecular shape of CH₂O?

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity. -BF₃

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity. -CS₂

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity. -NO₃^-

Any molecule of the form AX₃ is tetrahedral.

Judge whether or not the molecule or polyatomic ion shown is polar or non-polar. Draw a dipole vector to indicate the direction of any net polarity. -H₂S