CHEMISTRY · Single correct · A Level · Chemistry · Bonding · Bonding
Problem
Compared with a single C—C bond, a triple C≡C bond is known to be shorter and have a greater bond energy. Which of the following best describes how the potential-energy curve for the triple bond differs from that for the single bond?
(a) The minimum shifts to a larger internuclear distance, and the well becomes deeper and narrower.
(b) The minimum shifts to a smaller internuclear distance, and the well becomes deeper and narrower.
(c) The minimum shifts to a smaller internuclear distance, and the well becomes deeper and wider.
(d) The minimum shifts to a smaller internuclear distance, and the well becomes shallower and narrower.