Can you please explain how to do each problem ? 1. Choose the bond below that is

Question

Can you please explain how to do each problem ?

1. Choose the bond below that is the strongest.

C-F

C=O

C?N

I-I

C-I

2. Choose the compound below that contains at least one polar covalent bond, but is nonpolar

SeBr4

HCN

ICl3

CF4

Both B and C are nonpolar and contain a polar covalent bond.

3. Choose the molecule or compound that exhibits dipole-dipole forces as its strongest intermolecular force.

BCl3

H2

SO2

CF4

NH3

4.

Choose the molecule or compound that exhibits dispersion forces as its strongest intermolecular force.

HF

Cl2

CO

NaCl

All of these have intermolecular forces stronger than dispersion.

5.

Choose the pair of substances that are most likely to form a homogeneous solution.

Br2 and PF3

NH3 and CH3OH

NaCl and Hg

LiF and C6H14

C3H8 and C2H5OH

6. Choose the pair of substances that are most likely to form a homogeneous solution.

LiBr and C5H12

C6H14 and C10H20

I2 and CH3OH

N2O4 and NH4Cl

None of the pairs above will form a homogeneous solution.

7. How many of the following molecules are polar?

XeCl2 COF2 PCl4F SF6

2

0

3

4

1

C-F

C=O

C?N

I-I

C-I

Explanation / Answer

1)C--F bond is the strongest because  It is the strongest single bond in organic chemistry

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