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.
Ankle sprains are put into three different categories depending on the extent of your injury. The first type involves less pain and swelling. It will also take less time to heal as the other two. You will be able to bear some weight with a type one ankle sprain. Generally if the pain ends in a day or two it is an ankle sprain. On the other hand if the pain continues and the swelling gets worse than it is definitely a sprain. Now you will need to examine your ankle. If you cannot move your foot or bear much weight you probably have a type two sprain.