Discussion
The carboxylic acid that is used in rubber, textile, dyeing, leather and electroplating industries is
Answer: A
The acid is methanoic acid (formic acid).
Methanoic acid is used in the rubber industry (to coagulate latex), and in the textile, dyeing, leather and electroplating industries; this list of uses is given for it in the standard textbook account of carboxylic acids.
Ethanoic acid is used mainly as vinegar and as a solvent; lactic acid in foods and pharmaceuticals; benzoic acid (as sodium benzoate) as a food preservative; and hexanoic acid in making esters for flavours.
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