Understanding Bond Lengths in Chemistry

The video tutorial introduces the concept of bond length, defined as the average distance between the nuclei of two bonded atoms in a molecule. It explains the typical lengths of carbon-carbon single, double, and triple bonds, which are 154 pm, 134 pm, and 120 pm, respectively. The tutorial concludes by stating that single bonds are the longest, while triple bonds are the shortest.

What is bond length in chemistry?

• The distance between the outermost electrons of two atoms

• The average distance between the nuclei of two bonded atoms

• The distance between the electrons and the nucleus of an atom

• The average distance between the protons of two bonded atoms

Which of the following is the typical length of a carbon-carbon single bond?

• 180 pm

• 134 pm

• 154 pm

• 120 pm

How long is a typical carbon-carbon double bond?

• 154 pm

• 134 pm

• 100 pm

• 120 pm

What is the length of a typical carbon-carbon triple bond?

• 154 pm

• 134 pm

• 120 pm

• 110 pm

Which type of bond is the shortest among carbon-carbon bonds?

• Quadruple bond

• Triple bond

• Double bond

• Single bond