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Question

Name an acid used

(c) to remove ink stains.


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Solution

An acid is a substance in which the only positive ion is hydrogen. It can replace metal or basic radical. For example, Sulfuric acid H2SO4)and Hydrochloride acid HCl.

Ink stains can be removed using Oxalic acid C2H2O4. This is a colorless solution. Cleaning and bleaching, especially for rust removal, are two of Oxalic acid's most common uses.


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