D(+) glucose yields an oxime with hydroxyl amine. The structure of the oxime would be:
1. | 2. | ||
3. | 4. |
Sucrose can be formed by:
1. α–D–galactopyranose and α–D–glucopyranose
2. α–D–glucopyranose and β–D–fructofuranose
3. β–D–galactopyranose and α–D–fructofuranose
4. α–D–galactopyranose and β–D–fructopyranose
Which one of the following statements is not true regarding (+) lactose?
1. | (+) lactose is a β -glycoside and a molecule of D(+) galactose |
2. | (+) lactose is a reducing sugar and does not exhibit mutarotation |
3. | (+) lactose, C 12 H 22 O 11 contains 8-0 H groups |
4. | On hydrolysis (+) lactose gives equal amount of D(+) glucose and D(+) galactose |
Which one of the following does not exhibit the phenomenon of mutarotation?
1. (+) Sucrose
2. (+) Lactose
3. (+) Maltose=
4. (-) Fructose
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 |