Question Text
Question 3 :
A high molecular weight molecule which does not contain repeating structural units is called a:
Question 5 :
As plastics and synthetic fibers consist of repeating monomer units, they are known as ______ .
Question 11 :
Which of the following kind of polymers are known for their high crystallinity?
Question 14 :
A high molecular weight molecule built from a large number of small molecules is called a ____.<br/>
Question 23 :
Low-density polyethene (LDP) is used in the insulation of electricity carrying wires and manufacture of flexible pipes and squeeze bottles because:
Question 26 :
On the basis of the method of polymerization, polymers are classified as:
Question 28 :
Polymers of the type $Z – M_n – Y$, i.e. those which contain a foreign molecule in addition to the recurring unit are known as:
Question 30 :
Polymers are often gigantic molecules consisting of long chains of repeating chemical-units. Which of the following is not a polymer?
Question 35 :
Which of the following is an example of thermosetting polymer ?
Question 41 :
Which one of the following is an example of thermosetting polymers?
Question 44 :
Statement 1: Buta-$1, \:3$-diene is the monomer of Gutta Percha.<br/>Statement 2: Gutta Percha is formed through cationic addition polymerisation.
Question 46 :
The difference in the densities of low-density (LDP) and high-density polymers (HDP) is due to the fact that:
Question 48 :
Formation of polyethylene from calcium carbide taken place as follows:<br/>$CaC_2+2H_2O\rightarrow Ca(OH)_2+C_2H_2$<br/>$C_2H_2+H_2\rightarrow C_2H_4$<br/>$nC_2H_4\rightarrow (CH_2-CH_2)n$<br/>The amount of polyethylene obtained from 64.0 kg of $CaC_2$ is:
Question 50 :
Identify which one is not a homo polymer from the list given below:
