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प्रश्न
Which of the following monosaccharides are present as five membered cyclic structure (furanose structure)?
(i) Ribose
(ii) Glucose
(iii) Fructose
(iv) Galactose
उत्तर
(i) Ribose
(iii) Fructose
Explanation:
Ribose and fructose are presented as five-membered cyclic structure (furanose structures). They have five-membered ring with analogy to the compound foran.
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| (I) |  |
| (II) |  |
| (III) |  |
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