InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Lewis base? |
| Answer» Atomic or molecular chemical species having a highly localized HOMO (The Highest Occupied Molecular Orbital) act as Lewis bases. These chemical species have the ability to donate an electron pair to a given Lewis acid in order to form an adduct, as discussed earlier.Examples of Lewis bases which have an ability to donate an electron pair are listed below.\tPyridine and the derivatives of pyridine have the ability to act as electron pair donors.\xa0Thus, these compounds can be classified as Lewis bases.\tThe compounds in which Oxygen, Sulphur, Selenium, and Tellurium (which belong to group 16 of the Periodic Table) exhibit an oxidation state of -2 are generally Lewis bases. Examples of such compounds include water and ketones.\tThe simple anions which have an electron pair can also act as Lewis bases by donating these electrons. Examples of such anions include H–\xa0and F–. Even some complex anions, such as the sulfate anion (SO42-) can donate pairs of electrons. | |