Which of the following is a linear polymer?

Given the polymers: A=Nylon ; B=Buna-S; C=Polythene. Arrange these in increasing order of their intermolecular forces (Lower to higher)

Which of the following is not a semisynthetic polymer?

Which of the following polymers are condensation polymers?

Among cellulose,poly(vinyl chloride),nylon and natural rubber,the polymer in which the intermolecular force of attraction is weakest is

What is the role of benzoyl peroxide in addition polymerisation of alkenes ?

Draw the structures of the monomers of the following polymers :
(i) Bakelite
(ii) Nylon-6

What is the primary feature necessary for a monomer to make it useful in a condensation polymerization reaction?

How is dacron obtained from ethylene glycol and terephthalic acid?

What are addition polymers ? How are the two types of addition polymers different from each other ? Give one example of each type.

Write chemical equations for the synthesis of 
(a) terylene
(b) neoprene
(c) teflon

Write the names and structures of the monomers of the following polymers:
(i) Bakelite
(ii) Nylon-6
(iii) Polyethene

After the ban on plastic bags, students of a school decided to make people aware of the harmful effects of plastic bags on the environment and Yamuna River. To make the awareness more impactful, they organised a rally by partnering with other schools and distributed paper bags to vegetable vendors, shopkeepers and departmental stores. All the students pledged not to use polythene bags in the future to save the Yamuna River.
After reading the above passage, answer the following questions:
(i) What values are shown by the students?
(ii) What are bio-degradable polymers ? Give one example.
(iii) Is polyethene a condensation or an addition polymer?

Rubber is probably the most useful polymer which we come across. It is in fact, the backbone of the industry. It is present in rubber tree in the form of a colloidal suspension in water called latex. Chemically natural rubber is polyisoprene and is formed by polymerization of isoprene which is 2-Methyl-l,3-butadiene.
(i) Why is natural rubber quite soft?
(ii) How is vulcanisation of rubber carried?
(iii) Give anyone example of natural rubber.
(iv) What is the property of vulcanised rubber, which makes it's useful?

Synthetic polymers both addition and condensation have given a boom to our industry. These have made our lives very comfortable. But these are mostly nonbiodegradable and cause major pollution problems. Polythene bags, broken polythene pipes etc, are very difficult to be disposed off. Recently certain biopolymers have been developed which are better than synthetic polymers.
(i)Name certain biopolymers that are naturally occuring.
(ii) What is the nature of synthetic biopolymers ?
(iii) Name two synthetic biopolymers.
(iv)What is the value associated with the use of biopolymers?

Formaldehyde is a constituent of a number of polymers also called resins. These are non-volatile solids or semi-solids which are obtained from certain plants and also be synthesized in the laboratory.
(i) Name the main formaldehyde resins.
(ii) Mention the major components of these resins also called polymers.
(iii) Which out of these is useful in the manufacture of crockery?
(iv) Formaldehyde is obtained from plants. Similarly we obtain many useful things from plants. Is it worth to destroy plants for obtaining useful material ?