Bromine Water is a solution of bromine and water in which the water is saturated with bromine. This creates a layer of Br liquid at the bottom and a vapour layer on top.
Methyl orange is a pH indicator frequently used in titrations. It is often used in titrations because of its clear and distinct colour change. Because it changes colour at the pH of a mid-strength acid, it is usually used in titrations for acids. Unlike a universal indicator, methyl orange does not have a full spectrum of colour change, but has a sharper end point.