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Which of the following statements are wrong? (a)Dextrin is used in adhesives

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Which of the following statements are wrong?

(a) Dextrin is used in adhesives

(b) Starch phosphate is water soluble

(c) Dialdehyde starch is oxidized form of starch

(d) Regeneration of per iodic acid to iodic acid is high cost process

I have been asked this question in an online interview.

Enquiry is from Natural Products in portion Natural Products of Chemical Technology

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Right choice is (d) Regeneration of per iodic acid to iodic acid is high cost process

Explanation: Dextrin being carbohydrate gum is used in adhesives and gums. Starch phosphate is water soluble and has good thickening power. Dialdehyde starch is formed by oxidation of starch with per iodic acid. Regeneration of per iodic acid is a low cost process which is key to the oxidation reaction.

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