WorksheetsCellulose
Total questions: 10
Worksheet time: 5mins
Which one is not correct?
Cellulose is the most renewable polymer resource.
Cellulose almost never occur pure.
Cellulose from bacteria is not pure.
Cellulose has hydroxyl group in its structure.
Which one is the structure of cellulose?
β-1,4 linkage
α-1,6 linkage
α-1,4 linkage
β-1,6 linkage
Which one is correct?
Cellulose is polymer consisting of α-1,4 link.
β-conformation of glycosidic linkages cause linear chain.
Cellulose cannot be modified.
Cellulose is almost found in primary cell wall.
Which one is incorrect for cellulose I?
Parallel chain
Native cellulose
Intramolecular H-bonding between O2-H and O6
Intramolecular H-bond between O6-H and O3
Which one is not correct for the intramolecular H-bonding of cellulose I?
O2-H and O6
O3H-O5
O6-H and O5
None of these
Which one is not correct for cellulose II?
Regenerated cellulose
Parallel
More H-bonding
More stable crystalline
What is not property of cellulose?
Insoluble in water
Amorphous polymer
Biodegradable polymer
Not thermoplastic
Which property can improve mechanical properties of cellulose?
High size of cellulose microfibril
Low crystallinity
High degree of orientation of microfibril
Low degree of polymerization
Which is the position of hydroxyl group high reactivity?
6-OH
3-OH
2-OH
None of these
Why is cellulose not soluble in polar solvent?
Low degree of crystallinity
High intra- and intermolecular H-bonding
Glycosidic bond
All of these
