Oligosaccharides

Q.

What are the monomers and polymers of carbohydrates?

Q. The simplest form of carbohydrate is

1. Monosaccharide
2. Disaccharide
3. Polysaccharide
4. None of these

Q. Which of the following is a trisaccharide?

1. Rhamnose
2. Monellin
3. Stachyose
4. Raffinose

Q. What are the monomeric components of stachyose?

1. Glucose, galactose and lactose
2. Fructose, lactose and galactose
3. Glucose, rhamnose and sucrose
4. Glucose, fructose and galactose

Q.

What is raffinose?

Q.

Which of the following carbohydrate is an example of an oligosaccharide?

1. Glucose

2. Lactose

3. Fructose

4. Galactose

Q. What are oligosaccharides?

Q. By showing reactions , show hydrolysis of NCl3 and PCl3.

Q. Raffinose on hydrolysis gives:

1. Two monosaccharides
2. One disaccharide and one monosacharide
3. Three monosaccharides
4. Two monosaccharides and one disaccharide

Q. What are the monomeric components of stachyose?

1. Glucose, fructose and galactose
2. Glucose, galactose and lactose
3. Fructose, lactose and galactose
4. Glucose, rhamnose and sucrose

Q. Unsaturated fatty acids have

1. No double bonds
2. High melting point
3. One or more double bonds
4. Disulphide bonds

Q. Explain with structures how the osazones of glucose, fructose and mannose are identical.

Q. Raffinose is:

1. trisaccharide
2. disaccharide
3. monosaccharide
4. polysaccharide

Q. Which of the following statements concerning unsaturated fats is correct?

1. They have fewer fatty acid molecules per fat molecule
2. They generally solidify at room temperature
3. They have double bonds in the carbon chains of their fatty acids
4. They contain more hydrogen than do saturated fats having the same number of carbon atoms

Q. Raffinose is a:

1. trisaccharide
2. disaccharide
3. monosaccharide
4. none of the above

Q. Polyunsaturated fatty acid is

1. Arachdionic
   
2. Palmitic
3. Stearic
4. None of the above

Q. Raffinose on hydrolysis does not give :

1. Glucose
2. Ribose
3. Fructose
4. Galactose

Q. Name the compound that does not fit into the formula $C_x{\left(H_{2}O\right)}_Y$ but is a carbohydrate.

Q. Write chemical reaction of glucose with $HI$.