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Which reagent is used for drying ethylene dichloride in the manufacturing process of vinyl chloride?

(a) Calcium Carbonate

(b) Sodium sulfate

(c) Silica gel

(d) Sulfuric acid

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The correct choice is (c) Silica gel

For explanation I would say: Silica gel (desiccant) is the reagent used to dry ethylene dichloride, which on undergoing thermal pyrolysis produces vinyl chloride along with hydrochloric acid.

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