Fructose reduces Tollen's reagent due to:

1. Primary alcoholic group
2. Secondary alcoholic group
3. Enolisation of fructose followed by conversion to aldehyde by base
4. Asymmetric carbon
Subtopic:  Carbohydrates - Classification & D-L configuration |
 73%
Level 2: 60%+
AIPMT - 2010
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Monosaccharides are:

1. Carbohydrates that can't be hydrolysed further to give simpler units of polyhydroxy aldehyde or ketone. 
2. Classified on the basis of the number of carbon atoms and the functional group present in them.
3. The monomers of carbohydrates.
4. All of the above.

Subtopic:  Carbohydrates - Classification & D-L configuration |
 85%
Level 1: 80%+
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Glucose and Fructose can be distinguished by the use of :
1. Fehling solution 
2. Tollen's reagent 
3. Bromine water 
4. All of the above

Subtopic:  Carbohydrates - Classification & D-L configuration |
Level 3: 35%-60%
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Consider the following statements:
a. Glucose is also known as dextrose.
b. Glucose is oxidized to saccharic acid using bromine water. 
c. \(\alpha - \text D (+) -\) Glucose contains five chiral centers.

The correct statements are: 
1. (a) and (b) only 
2. (b) and (c) only 
3. (a) and (c) only 
4. (a), (b) and (c)  
Subtopic:  Carbohydrates - Classification & D-L configuration |
 59%
Level 3: 35%-60%
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The major product obtained when glucose reacts with bromine water among the following is:
1. Gluconic acid 
2. Glyceraldehyde 
3. Sorbitol 
4. Saccharic acid 

Subtopic:  Carbohydrates - Classification & D-L configuration |
 83%
Level 1: 80%+
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D-glucose upon treatment with nitric acid gives:

1.      2.
3. 4.
Subtopic:  Carbohydrates - Classification & D-L configuration |
 73%
Level 2: 60%+
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Which one is not a D-sugar:

1. 2.
3. 4.
Subtopic:  Carbohydrates - Classification & D-L configuration |
 70%
Level 2: 60%+
NEET - 2022
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 D configuration is shown by:

           (i)                 (ii)             (iii)

1. i, ii and iii
2. ii and iii
3. i and ii
4. Only iii

Subtopic:  Carbohydrates - Classification & D-L configuration |
 71%
Level 2: 60%+
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Identify the anomeric carbon in the given structure of \(\alpha-D-\) glucopyranose:
1. C1 2. C2 and C3
3. C4 and C5  4. C6
Subtopic:  Carbohydrates - Classification & D-L configuration |
 79%
Level 2: 60%+
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The incorrect statement among the following regarding glucose is:

1. It is an aldohexose.
2. n-Hexane is formed when glucose is heating with HI.
3. It is present in furanose form.
4. It does not give 2, 4- DNP test.
Subtopic:  Carbohydrates - Classification & D-L configuration |
 81%
Level 1: 80%+
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