Which of the following acid is used a coagulant for latex in the rubber industry ?
Correct answer: A. Acetic acid
- A. Acetic acid
- B. Butyric acid
- C. Propanoic acid
- D. All of these
Explanation
Option A is correct since ethanoic acid is an organic acid. It ionizes in water to produce hydrogen ions. The positive hydrogen ions help to neutralize the negatively-charged rubber particles, allowing the latex to coagulate.Option B is incorrect since butyric acid is used in the preparation of various butyrate esters. It is used to produce cellulose acetate butyrate (CAB), which is used in a wide variety of tools, paints, and coatings, and is more resistant to degradation than cellulose acetate.Option C is incorrect since propanoic Acid is a colorless, oily liquid with a strong, unpleasant odor. It is used as a preservative, fungicide, and antimicrobial agent.Option D is incorrect since it states all of these, which is not the case.
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About Carboxylic Acids
Carboxylic acids are named and studied through the combined effects of the carbonyl and hydroxyl groups, their preparation, acidity and hydrogen bonding. Reactions include neutralisation, esterification, reduction and conversion into acid chlorides, anhydrides, esters and amides, with emphasis on how these derivatives interconvert.
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