Question

Resin and turpentine is obtained from
(a)Pteridophytes
(b)Gymnosperm woods
(c)Angiosperm woods
(d)Angiosperm flowers

Answer 1

Hint: Resins is an organic substance that is fusible and flammable. They are the plant exudates that make the wood resistant to decay. However, the turpentine is a liquid obtained by the distillation of resins. Coniferous trees produce both resins and turpentines.

Complete answer:
Resin and turpentine are obtained from gymnosperm woods. In gymnosperms, they are mainly produced from Pinus which is the largest genus of the Pinaceae. The wood of these plants is generally used in high-value carpentry items such as furniture, floors, roofing, and window frames. They have long, thin, and needle-like leaves. They play an important role in our ecosystem for our survival.
Turpentine is an important source of the resin.
>Resins: Conifers are the major plants that are the resin yielders of the world especially pines and firs. Natural resins are mainly classified as oil-soluble and spirit-soluble. They are mainly used in plaster varnishes, enamels, paper sizing, medicines, etc.
>Turpentines: They are oleoresins that are obtained from coniferous trees. They are resulted by the distillation of resin harvested from living trees, mainly pines. They yield the essential oil or spirits of turpentine. Crude turpentine is gained from the long-leaf pine and splashes pine. Very important pine rosin is obtained by tapping the Chir pine (Pinus roxburghii) and blue pine (P. wallichiana) in India. The primary uses of turpentine involve a solvent in industry and as a source of materials for organic synthesis. Turpentines are also used as a source of raw materials for the synthesis of a fragrant chemical compound.

So, the correct answer is ‘gymnosperm wood’.

 Note:-Rosin is the mixture of diterpenes and triterpenes that is left as a residue after turpentine distillation.
-Distillation is the process of purification of substances from a liquid by heating and cooling.