FIBRE CHEMISTRY

Which chemical groups in a fibre are responsible for the bonding between them?
1. - C=C -
2. -NH2
3. -OH
4. -COOH
Which of the following chemical groups are responsible for the charge on a fibre?
1. - C=C -
2. COOH
3. OH
4. NH2
Which of the following best describes the major chemical components of a fibre?
1. Cellulose, extractives, hemicellulose, lignin
2. Cellulose, extractives, hemicellulose, resin
3. Cellulose, extractives, hemicellulose, holocellulose
4. Cellulose, extractives, holocellulose, lignin
Which sugar is the main building block of cellulose
1. Glucose
2. Sucrose
3. Lactose
4. Fructose
What is the difference between cellulose and hemicellulose?
1. Cellulose is soluble and shorter
2. Cellulose is longer and soluble
3. Cellulose is shorter and insoluble
4. Cellulose is longer and insoluble
If the sugar molecules are assembled in one particular way, we get cellulose. If they are assembled a different way, what do we get then?
1. Alpha cellulose
2. Starch
3. Honey
4. Hemicellulose
Which is the largest molecule?
1. Cellulose
2. Hemicellulose
3. Resin
4. Lignin
What is the general formula for cellulose
1. C6 H12 O6
2. C12 H6 O6
3. C6 H6 O12
4. C12 H12 O6
Which of the following carbohydrates contains more than one type of sugar?
1. Cellulose
2. Starch
3. Mannose
4. Hemicellulose
Which type of bonding holds fibres together?
1. Covalent bonding
2. Hydrogen bonding
3. Ionic bonding
4. Double bonding