191.

Chain transfer reagent is

• CCl₄

• CH₄

• O₂

• H₂

The monomer of teflon polymer is :

• CF₂=CF₂

• CF₂=CCl₂

• CH₂F-CH₂F

• CF₂=CFCl

Assertion : 1,3-butadiene is the monomer for natural rubber.

Reason : Natural rubber is formed through anionic addition polymerization.

• If both assertion and reason are true and reason is the correct explanation of the assertion.

• If both assertion and reason are true but reason is not the correct explanation of the assertion.

• If assertion is true, but reason is false.

• Both assertion and reason are false statements

The components of Zeigler Natta catalyst, used in the polymerisation of propylene, are:

• TiCl₃ + Al(C₂H₅)₃

• TiCl₄ + Al(C₂H₅)₃

• Ti(C₂H₅)₃ + AlCl₃

• Ti(C₂H₅)₄ + AlCl₃

Teflon is a polymer of :

• tetra fluoroethylene

• tetrabromoethylene

• tetraiodoethylene

• tetrachloroethylene

Lucas test is used for the determination of :

• alcohols

• alkyl halides

• phenols

• aldehydes

Which of the following is a biodegradable polymer?

• Cellulose

• Polythene

• Polyvinyl chloride

• Nylon-6

Nylon is an example of

• polyster

• polysaccharide

• polyamide

• polythene

Which is the monomer of neoprene in the following?

• ${\mathrm{CH}}_2=\mathrm{CH}=\mathrm{C}\equiv \mathrm{CH}$

• ${\mathrm{CH}}_2=\mathrm{C}\left({\mathrm{CH}}_3\right)-\mathrm{CH}={\mathrm{CH}}_2$

• ${\mathrm{CH}}_2=\mathrm{C}\left(\mathrm{Cl}\right)-\mathrm{CH}={\mathrm{CH}}_2$

• ${\mathrm{CH}}_2=\mathrm{CH}-\mathrm{CH}={\mathrm{CH}}_2$

Which one of the following is an example of co-polymer?

• Buna-S

• Teflon

• PVC

• Polypropylene