Lesson Worksheet: Polar Bonding Chemistry

In this worksheet, we will practice identifying polar bonds within molecules and assessing their effect on the polarity of the molecule as a whole.

Q1:

Which of the molcules Br2, HF, CHCl3, CCl4, and NH3 contains polar bonds but is not a polar molecule?

  • AHF
  • BCHCl3
  • CNH3
  • DBr2
  • ECCl4

Q2:

Which of the following bonds is considered polar?

  • BrBr
  • CH
  • CC
  • OH
  • OO
  • ACC
  • BOH
  • COO
  • DCH
  • EBrBr

Q3:

Partial charges are created from the asymmetric distribution of the electrons in chemical bonds within molecules.

In the following diagram, identify which atom has a delta positive charge.

HCl
  • AChlorine
  • BHydrogen

In the following diagram, identify which atom has a delta negative charge.

OHH
  • AHydrogen
  • BOxygen

Q4:

Which diagram shows a molecule of carbon dioxide with correctly labeled dipoles?

  • A
    OCO
  • B
    OCO
  • C
    OCO
  • D
    OCO
  • E
    OCO

Q5:

Fill in the blank: The ability of an atom to attract a pair of electrons in a chemical bond is known as .

  • Anuclear affinity
  • Belectronegativity
  • Celectron affinity
  • Dconductivity
  • Eionization energy

Q6:

Which of the following determines the polarity of a bond between two elements?

  • AThe difference in electronegativity between the two elements
  • BThe atomic size of the two elements
  • CThe number of valence electrons in the two elements
  • DThe type of bond between the two elements
  • EThe difference in first ionization energy between the two elements

Q7:

What type of bond is the CH bond?

  • AHydrogen bond
  • BNonpolar covalent bond
  • CPolar covalent bond
  • DIonic bond

Q8:

Fill in the blanks: N2 is a molecule and has a bond.

  • Anonpolar, polar
  • Bpolar, nonpolar
  • Cpolar, polar
  • Dnonpolar, nonpolar

Q9:

Which of the following diagrams shows a correct representation of the electron cloud that surrounds an HCl molecule?

  • A
  • B
  • C
  • D

Q10:

Which of the following represents the type of bond formed when two electrons in a chemical bond are equally shared?

  • AIonic bond
  • BPure covalent bond
  • CPolar covalent bond
  • DHydrogen bond

This lesson includes 16 additional questions and 8 additional question variations for subscribers.

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