Lactose is a disaccharide composed of:
1. \(\alpha - D-\)Glucose and \(\beta-D-\)Galactose
2. \(\beta-D-\)Glucose and \(\beta-D-\)Galactose 
3. \(\beta - D-\)Glucose and  \(\alpha-D-\)Galactose 
4. \(\alpha - D-\)Glucose and  \(\alpha-D-\)Galactose 
Subtopic:  Polysaccharides & their Importance |
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Assertion (A): Deoxyribose, C5H10O4, is not a carbohydrate.
Reason (R): Carbohydrates are hydrates of carbon so compounds that follow CxH2Oy the formula are carbohydrates.

  

1. (A) and (R) both are correct statements and (R) explain the (A).
2. Both (A) and (R) are wrong statements.
3. (A) is the correct statement and (R) is the wrong statement.
4. (A) is the wrong statement and (R) is the correct statement.
Subtopic:  Polysaccharides & their Importance |
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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 |
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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 |
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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 |
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The reaction of concentrated sulphuric acid with carbohydrates (C12H22O11) is an example of:
1. Dehydration
2. Oxidation
3. Reduction
4. Sulphonation

Subtopic:  Polysaccharides & their Importance |
 62%
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NEET - 2020
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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 |
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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 |
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D-glucose upon treatment with nitric acid gives:

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

1. 2.
3. 4.
Subtopic:  Carbohydrates - Classification & D-L configuration |
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NEET - 2022
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