Styrene which is a monomer for the production of polystyrene, is commercially produced by the

Styrene (a monomer for the production of polystyrene) is commercially produced by

A

Catalytic dehydrogenation of ethyl benzene

B

Dehydration of ethyl alcohol followed by hydrogenation

C

Reacting ethylene oxide with acetal-dehyde

D

Fermentation of starch

Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styrene-acrylonitfile copolymer with butadiene based elastomer, is a/an

A

Rigid foam

B

Engineering plastic

C

Thermosetting polymer

D

Spongy rubber

Styrene butadiene rubber is commercially manufactured by

A

Bulk polymerisation

B

Suspension polymerisation

C

Solution polymerisation

D

Emulsion polymerisation

Styrene is produced from ethyl benzene by the process of

A

Dehydrogenation

B

Oxidation

C

Alkylation

D

Dehydration

Starting material for the production of styrene butadiene rubber (SBR) is

A

Ethyl alcohol

B

Ethylene

C

Both A & B

D

Neither A nor B

Polymerisation reactor used for the production of styrene butadiene rubber (SBR) is made of

A

Cast iron

B

Stainless steel or glass lined vessel

C

Karbate

D

Wrought iron

Polymerisation reactor used in the production of styrene butadiene rubber (SBR) is made of

A

Stainless steel or glass lined steel

B

Nickel clad steel

C

High silicon cast iron

D

Aluminium

In a new production process, the number of units produced during the first week was 450. If the efficiency gradually increase so that 10 additional units can be produced each week, how many will be produced in the 10th week?

A

490

B

700

C

540

D

640

Which of the following is not produced commercially from sea water?

A

Magnesium & potassium compounds

B

Common salt

C

Bromine

D

Iodine

Alum is commercially produced from

A

Gypsum

B

Feldspar

C

Galena

D

Bauxite

Styrene which is a monomer for the production of polystyrene, is commercially produced by the

Related Questions