Which one of the following is a co-polymer?

• Polyethylene

• Polyvinyl chloride

• Polytetrafluoroethylene

• Nylon-6,6

The number average molecular mass and mass average molecular mass of a polymer are respectively 30,000 and 40,000. The poly dispersity index of the polymer is :

• < 1

• >1

• 1

• 0

Which one of the following statement is wrong?

• The IUPAC name of [Co(NH₃)₆Cl₃] is hexamine cobalt (III) chloride

• Dibenzol peroxide is a catalyst in the polymerization of PVC

• Borosilicate glass is heat resistant

• Concentrated HNO₃ can be safely transported in aluminium containers

Which of the following is not a thermoplastic?

• Polystyrene

• Teflon

• Novalac

• Polyvinyl chloride

The catalyst used for the polymerization of olefins is :

• Ziegler-Natta catalyst

• Wilkinson's catalyst

• Pd-catalys

• Zeise's salt catalyst

Bakelite is a:

• urea-formaldehyde resin

• phenol formaldehyde resin

• polyethylene

• artificial rubber

The common acid used in the manufacture of rayon and plastic is :

• methanoic acid

• ethanoic acid

• propanoic acid

• butanoic acid

Name the compound/ compounds used in the preparation of Nylon-66.

• ε-caprolactum

• hexamethylene diamine and adipic acid

• dimethyl terephthalate

• hexamethylene diamine

299.

When condensation product of hexamethylenediamine and adipic acid is heated to 353 K (80° C) in an atmosphere of nitrogen for about 4-5 h, the product obtained is:

• solid polymer of nylon 66

• liquid polymer of nylon 66

• gaseous polymer of nylon 66

• Liquid polymer of nylon 6

Which one of the following is used in the preparation of styrene? 

• CH₃CHO

• P₂O₅

• CH₄

• C₆H₆