The acid which is used as ink remover is_________________?
Correct answer: A. Oxalic acid
- A. Oxalic acid
- B. Succinic acid
- C. Adipic acid
- D. Acetic acid
Explanation
Oxalic acid is used to remove ink stains because it acts as a reducing and complexing agent, helping dissolve coloured metal-containing deposits. Succinic and adipic acids are mainly used in chemical manufacture, while acetic acid is the acid in vinegar. A student may choose acetic acid because vinegar is a familiar household cleaner, but oxalic acid is the standard ink-remover answer.
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About Nomenclature, Structure and Preparation
Carboxylic acids are prepared by oxidising primary alcohols or aldehydes, hydrolysing nitriles, esters and amides, and carbonating suitable organometallic compounds. Their structures, IUPAC naming, resonance stabilisation and acidic character explain why carboxylic acids differ from alcohols and phenols, despite all containing oxygen and hydrogen.
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550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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