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The statement that is NOT correct is tha...

The statement that is NOT correct is that

A

aldose or ketose sugars in alkaline medium do not isomerise

B

carbohydrates are optically active

C

penta-acetate of glucose does not react with hydroxylamine

D

lactose has glycosidic linkage between `C_4` of glucose and `C_1` of galactose.

Text Solution

Verified by Experts

The correct Answer is:
A
Aldoses or ketoses in alkaline medium undergo Lobry de Bruyn van Ekenstein rearrangement. Thus , option (a) is wrong.
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PRADEEP-BIOMOLECULES -Competition Focus JEE(Main and Adanced)/Medical Entrance Special (I . Multiple Choice Questions)
  1. alpha-Maltose consists of

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  2. Which one of the following statements is not true regarding ( +) Lacto...

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  3. The statement that is NOT correct is that

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  4. The correct statement about the following disaccharide is

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  5. Which of the components of starch is water soluble ?

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  6. Glycogen is

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  7. Cellulose upon acetylation with excess acetic anhydride/H(2)SO(4) (cat...

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  8. Cellulose is soluble in

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  9. Callulose is not digestible by human beings due to the absence of cell...

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  10. The one letter code for the amino acid tryptophan is

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  11. Which of the following is an essential amino acid ?

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  12. Thiol group is present in :

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  13. Which of the following satements is correct ?

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  14. Lysine is least soluble in water in the pH range.

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  15. Which the list shown below, the correct pair of structures of alanine ...

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  16. In a protein molecule various amino acids are linked together by :

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  17. Which of the following structures represents the peptide chain?

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  18. The number of tripeptides formed by three different amino acids is:

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  19. Which statement is incorrect about peptide bond?

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  20. Sanger's reagent is used for the identification of:

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