Turpentine oil in paints is used as a
(a) Thinner
Thinner
Turpentine is a substance characteristic of pine trees and other conifers, is composed of a mixture of resins and volatile oils. Pinus longifolia is one of the pine trees from which turpentine is obtained. This belongs to Pinaceae family of gymnosperms.
It is used for medical purposes such as in treatment of joint pain, toothaches and muscle pain. It is also used as a thinner in order to make the oil paint thin to improve the flow of paint onto the canvas.
Therefore, the correct option is (a)