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 |
Assertion (A): | Deoxyribose, , is not a carbohydrate. |
Reason (R): | Carbohydrates are hydrates of carbon so compounds that follow 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. |
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 |
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. |
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
The reaction of concentrated sulphuric acid with carbohydrates (C12H22O11) is an example of:
1. Dehydration
2. Oxidation
3. Reduction
4. Sulphonation
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 major product obtained when glucose reacts with bromine water among the following is:
1. Gluconic acid
2. Glyceraldehyde
3. Sorbitol
4. Saccharic acid
D-glucose upon treatment with nitric acid gives:
1. | 2. | ||
3. | 4. |
Which one is not a D-sugar:
1. | 2. | ||
3. | 4. |