Which of the following is known as Westron (a good industrial solvent)?

Acetylene tetrachloride

The answer to the question is (a) Acetylene tetrachloride.

Acetylene tetrachloride is a colorless, dense liquid that has a sweet odor. It is a good industrial solvent and is used in a variety of applications, including the production of other chemicals, as a solvent for fats, oils, waxes, resins, and cellulose acetate, and in certain types of Friedel-Crafts reactions.

The chemical formula for acetylene tetrachloride is \(C_2Cl_4\). It is also known as tetrachloroethylene or TCE. Acetylene tetrachloride is a chlorinated hydrocarbon and is a known carcinogen. Its use has been declining in recent years due to concerns about its toxicity.