1.

The old paint coating cannot be removed by __________(a) Soaps(b) Caustic soda(c) Trisodium phosphate(d) Sulphuric acidI had been asked this question in an international level competition.This question is from Protective Coatings topic in section Electro Chemical Cells and Corrosion of Applied Chemistry

Answer»

Correct OPTION is (d) SULPHURIC acid

The EXPLANATION: The OLD paint coatings can be removed by ALKALI cleaning process. The Soaps, caustic soda and trisodium phosphate are used.



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