351.

Formation of terylene is an example of:

• condensation polymerisation

• addition polymerisation

• esterification

• saponification

Which of the following is called polyamide ?

• Terylene

• Rayon

• Nylon

• Orlon

Teflon polymer is formed by polymerization of :

• CH₂=CH-CN

• F₂C=CF₂

• Cl₂ = CH₂

• H₂C = CHCl

Which of the following is a condensation polymer?

• [-NH-CO(CH₂)₅-]_n

• Rubber

• Polyvinyl chloride

• Polyethylene

The monomer used in novolac, a polymer used in paints

• melamine and formaldehyde

• phenol and formaldehyde

• butadiene and acrylo nitrile

• butadiene and styrene

Which of the following is cross-linked polymer?

• Teflon

• Orlon

• Nylon

• Bakelite

Bakelite is obtained from phenol by reacting with:

• acetaldehyde

• acetal

• formaldehyde

• chlorobenzene

Nylon threads are made of

• polyvinyl polymer

• polyester polymer

• polyamide polymer

• polyethylene polymer

Among the following, a natural polymer is :

• cellulose

• PVC

• polyethylene

• Teflon

F₂C = CF₂ is a monomer of

• teflon

• nylon

• glyptal

• buna-S