HARD
12th ICSE
IMPORTANT
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Write the free radical mechanism for the polymerisation of ethene.

Important Questions on Polymers

EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 15 - Polymers>Chapter Practice>Q 44

Write the names of monomers of the given polymer :

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MEDIUM
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 15 - Polymers>Chapter Practice>Q 46
How can you differentiate between addition and condensation polymerisation?
EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 15 - Polymers>Chapter Practice>Q 47
What type of polymerisation takes place in the formation of the polyester?    
EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 15 - Polymers>Chapter Practice>Q 48
Give one physical property of the cross-linked synthetic polymer.
HARD
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 15 - Polymers>Chapter Practice>Q 51
Shyam went to a grocery shop to purchase some food items. The shopkeeper packed all the items in polythene bags and gave them to Shyam. But, Shyam refused to accept the polythene bags and asked the shopkeeper to pack the items in paper bags. He informed the shopkeeper about the heavy penalty imposed by the government for using polythene bags. The shopkeeper promised that he would use paper bags in future in place of polythene bags. Answer the following question : Write one structural difference between low-density polythene and high-density polythene.
 
EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 15 - Polymers>Chapter Practice>Q 51
Shyam went to a grocery shop to purchase some food items. The shopkeeper packed all the items in polythene bags and gave them to Shyam. But, Shyam refused to accept the polythene bags and asked the shopkeeper to pack the items in paper bags. He informed the shopkeeper about the heavy penalty imposed by the government for using polythene bags. The shopkeeper promised that he would use paper bags in future in place of polythene bags.
Answer the following question : Why did Shyam refuse to accept the items in polythene bags?
 
HARD
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 15 - Polymers>Chapter Practice>Q 51
Shyam went to a grocery shop to purchase some food items. The shopkeeper packed all the items in polythene bags and gave them to Shyam. But, Shyam refused to accept the polythene bags and asked the shopkeeper to pack the items in paper bags. He informed the shopkeeper about the heavy penalty imposed by the government for using polythene bags. The shopkeeper promised that he would use paper bags in future in place of polythene bags. Answer the following question : What is a biodegradable polymer? Give an example.
 
HARD
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 15 - Polymers>Chapter Practice>Q 52
A monomer of a polymer upon ozonolysis gives one mole of methylglyoxal and two moles of formaldehyde. Give its free radical mechanism of addition polymerisation.