Question

Resins are

• A. Soluble in spirit
• B. Left behind on evaporation of oil
• C. Used in varnishes
• D. Not soluble in water
• E. All of the above

Answer 1

The correct option is E

All of the above

The correct option is E.
Explanation for the correct option:

1. Trees emit liquid or semiliquid resins along with other substances including gums, essential oils, and other substances.
2. They are thought to be created by the oxidation of the essential oils and are made of carbon, hydrogen, and oxygen.
3. Plant resins are valuable for making food glazing agents, adhesives, and varnishes.
4. In addition, they serve as valuable raw materials for the synthesis of other chemical compounds and are the source of incense and perfume ingredients.
5. Acrylic, alkyl, or polyurethane are examples of synthetic resins used in the production of varnishes.
6. Natural resins like rosin, kauri gum, dammar, amber, mastic, copal, sandarac, balsam, elemi, and shellac are used to make varnishes.
7. Resins are employed as components of varnishes because they are soluble in spirit but insoluble in water.
8. And varnishes were created by their resinous solvent solution.

Final answer: Resins are soluble in spirit; left behind on evaporation of oil; used in varnishes and not soluble in water.