Saved Bookmarks
| 1. |
Arrange the following in the order of increasing bond dissociation enthalpy : HF, HCl, HBr, HI. |
| Answer» SOLUTION :As the size of the atom (X) increases from F to I, the bond LENGTH of the H-X bond increases and consequently bond DISSOCIATION enthalpy of the H-X bond DECREASES. In other bonds, bond dissociation enthalpy increases in the ordr : `HI lt HBr lt HCl lt HF` | |