A chemical contained in tea is also contained in the bark of a tree. It is used for making ink-removers. Can you identify it?

Caffeine

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Oxalic acid

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Tannic acid

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Cellulose

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Solution

The correct option is D Oxalic acid
(i) Oxalic acid is used in cleaning or bleaching, especially for removal of rust.
(ii) Oxalic acid is effective in removing stain.
(iii) It is used in making ink removers.

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A chemical contained in tea is also contained in the bark of a tree. It is used for making ink-removers. Can you identify it?

The correct option is D Oxalic acid(i) Oxalic acid is used in cleaning or bleaching, especially for removal of rust.(ii) Oxalic acid is effective in removing stain.(iii) It is used in making ink removers.

The correct option is D Oxalic acid
(i) Oxalic acid is used in cleaning or bleaching, especially for removal of rust.
(ii) Oxalic acid is effective in removing stain.
(iii) It is used in making ink removers.