Worksheet: Polar Bonds and Polar Molecules

In this worksheet, we will practice identifying polar bonds and molecules based on the differences in electronegativity of the elements involved.

Q1:

Which of the following molecules has a permanent dipole moment?

  • A A l F 3
  • B B F 3
  • C C F 4
  • D P F 3
  • E P F 5

Q2:

Which of the following molecules has a permanent dipole?

  • A S e S 2
  • B C S 2
  • C X e F 2
  • D C C l F 2 2
  • E C H 2 2

Q3:

Which of the following molecules and ions does not have a dipole moment?

  • A C l O 2
  • B C l F 5
  • C T e C l 4 2
  • D X e F 2
  • E P H 2

Q4:

How can a molecule that contains polar bonds be non-polar?

  • AIf there is another polar bond somewhere in the molecule, pointing in the opposite direction.
  • BMolecules with polar bonds will always be polar overall.
  • CIf the molecule has mirror symmetry.
  • DIf the dipoles of the polar bonds are arranged such that they cancel each other out in the sum for the total dipole moment.
  • EIf there is hydrogen bonding.

Q5:

Which of the following bonds is the most polar?

  • A C C
  • B C H
  • C B r H
  • D C l H
  • E N H

Q6:

If directly bonded to sulfur, which of the following elements would produce a partial negative charge on the sulfur?

  • A N
  • B O
  • C I
  • D B
  • E B r

Q7:

If directly bonded to sulfur, which of the following elements would produce a partial positive charge on the sulfur?

  • A B
  • B P
  • C H
  • D O
  • E C

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