For litmus, it so happens that the 50 / 50 colour does occur at close to pH 7 - that's why litmus is commonly used to test for acids and alkalis. As you will see below, that isn't true for other indicators. Methyl orange. Methyl orange is one of the indicators commonly used in titrations. In an alkaline solution, methyl orange is yellow and the structure is: Now, you might think that when you add an acid, the hydrogen ion would be picked up by the negatively charged oxygen. That's the obvious place for it to go.
Ankle sprain: Types list. The list of types of Ankle sprain mentioned in various sources includes: 1  Anterior talofibular ligament sprain - most common. 2  Calcaneofibular ligament sprain - second most common.  Inversion injury - from the foot turning inward.
If you have a sprain, the bone is not injured. Rather, the ligaments that support the ankle get stretched too far, causing injury. There are two types of sprains: Inversion Sprain: Most common is the inversion ankle sprain. It happens when your foot falls inward and the outer ligaments are stretched too far. You will experience pain on the outside of your ankle.