Disaccharides and polysaccharides, reducing sugars

27 questions on Disaccharides and polysaccharides, reducing sugars from the Biomolecules chapter: 6 NEET level, 11 JEE Main, 10 JEE Advanced. Each one opens with its answer and solution.

• On hydrolysis, sucrose gives NEET level
• Which of the following does not reduce Fehling solution? NEET level
• Cellulose is a polymer of NEET level
• The storage polysaccharide of animals is NEET level
• Lactose is a disaccharide made of NEET level
• Complete hydrolysis of maltose gives NEET level
• In sucrose, the glycosidic linkage joins JEE Main level
• Sucrose does not reduce Fehling solution because JEE Main level
• Sucrose has specific rotation +66.5 deg. Glucose has +52.5 deg and fructose has -92.4 deg. Complete hydrolysis of sucrose gives an equimolar mixture of the two ... JEE Main level
• Amylopectin differs from amylose in having JEE Main level
• Humans cannot digest cellulose because JEE Main level
• Glycogen is structurally most similar to JEE Main level
• Which disaccharide consists of two alpha-D-glucose units joined by a C-1 to C-4 link and has a free hemiacetal group? JEE Main level
• A sucrose solution gives a negative Fehling test. After boiling with dilute HCl and neutralising, it gives a positive test. This is because JEE Main level
• One mole of maltotriose (three D-glucose units joined linearly by alpha-1,4 links) is completely hydrolysed. The moles of water consumed are JEE Main level
• Which statements about sucrose are correct? JEE Main level
• Which polysaccharides contain only alpha-glycosidic links between glucose units? JEE Main level
• A linear polymer of D-glucose joined only by alpha-1,4 links has molar mass 16200 g mol^-1 (treat it as exactly n x 162, the mass of n units of C6H10O5, ignorin... JEE Advanced level
• An amylopectin-like molecule has 1000 glucose units and 40 branch points, each branch point being one alpha-1,6 link. Assuming a single reducing end, the number... JEE Advanced level
• A disaccharide reduces Fehling solution, gives only D-glucose on hydrolysis, is hydrolysed by an enzyme specific for alpha-glycosides and has a C-1 to C-4 linka... JEE Advanced level
• Each molecule of acetic anhydride transfers one acetyl group to one OH group. Sucrose, C12H22O11, has eight OH groups. The moles of acetic anhydride needed to a... JEE Advanced level
• Assertion: Starch is hydrolysed by salivary amylase but cellulose is not. Reason: Starch has alpha-glycosidic links, cellulose has beta-glycosidic links, and th... JEE Advanced level
• Sucrose of mass 3.42 g (molar mass 342 g/mol) is completely hydrolysed. Using molar mass 180 g/mol for both glucose and fructose, the total mass of monosacchari... JEE Advanced level
• Which statements about lactose are correct? JEE Advanced level
• Which statements about complete hydrolysis are correct? JEE Advanced level
• Which statements about sucrose are correct? JEE Advanced level
• Sucrose hydrolysis gives an equimolar mixture of D-glucose (specific rotation +52.6 deg) and D-fructose (specific rotation -92.4 deg). The two have the same mol... JEE Advanced level