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Organic Chemistry

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Carbohydrates

Question
8 out of 11
 

The structures of some monosaccharides are drawn below.

image\Ch 29 pass, g1,2.png

image\Ch 29 pass g3,4.png


Which of the following statements are true regarding the two structures (Compounds I & II) drawn below?

image\Ch 29 Q 8.png

Statement (1) - Compound I is glucose.

Statement (2) - Compound II is glucose.

Statement (3) - Compound II is fructose.

Statement (4) - Compound II is fructose.



A Statements 1 & 2
B Statements 2 & 3
C Statements 3 & 4
D Statements 2 & 3
Ans. A

image\Solutions ch 29, Q 8.png

Statements 1 and 2 are true. Both given structures are glucose; one is in the furanose ring form, and the other is in the pyranose ring form. The five-membered ring of glucose is called glucofuranose. The six-membered ring of glucose is called glucopyranose.

Carbohydrates Flashcard List

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