Q21 of 40 Page 1

A. Write the name of two monosaccharides obtained on hydrolysis of lactose sugar.

B. Why Vitamin C cannot be stored in our body?


C. What is the difference between a nucleoside and nucleotide?

(a) Hydrolysis of lactose sugar produces one molecule of D-Glucose and one molecule of D-Galactose.

(b) Vitamin-C cannot be stored in our body because it is water soluble and it repeatedly gets eliminated through urine.


(c) A nucleoside is formed by the attachment of purine or pyrimidine base to the 1-positionof a pentose sugar.


A nucleotide is a unit formed by the attachment of nucleoside to phosphoric acid at the 5-position of the sugar moiety.



More from this chapter

All 40 →
20

A. What is the role of t-butyl peroxide in the polymerization of ethane?

B. Identify the monomers in the following polymer:



C. Arrange the following polymers in the increasing order of their intermolecular forces:


Polystryrene, Terylene, Buna-S

 20

Write the mechanism of free radical polymerization of ethane.

 22

For the complex write the hybridization type, magnetic character and spin nature of the complex. (At. Number: Fe = 26).

 22

Draw one of the geometrical isomers of the complex which is optically active.