Zeigler process (A) Produces high density polythene(B) Uses no catalyst(C) Produces low density polythene(D) Employs very high pressure

Zeigler process
(A) Produces high density polythene
(B) Uses no catalyst
(C) Produces low density polythene
(D) Employs very high pressure
by

1 Answer

Answer :

(A) Produces high density polythene
by

Related questions

Low pressure Zeigler process of polythene manufacture (A) Employs a pressure of 30 kgf/cm2 (B) Achieves an yield of 95-98% based on ethylene (C) Produces very low density polythene (D) Does not use any catalyst for polymerisation

Description : Low pressure Zeigler process of polythene manufacture (A) Employs a pressure of 30 kgf/cm2 (B) Achieves an yield of 95-98% based on ethylene (C) Produces very low density polythene (D) Does not use any catalyst for polymerisation

Last Answer : (B) Achieves an yield of 95-98% based on ethylene

Zeigler process (A) Produces high density polyethylene (B) Produces low density polyethylene (C) Uses no catalyst (D) Employs very high pressure

Description : Zeigler process (A) Produces high density polyethylene (B) Produces low density polyethylene (C) Uses no catalyst (D) Employs very high pressure

Last Answer : (A) Produces high density polyethylene

Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is (A) Ni (B) V2O5 (C) Fe (D) Aluminium triethyl combined with titanium tetrachloride

Description : Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is (A) Ni (B) V2O5 (C) Fe (D) Aluminium triethyl combined with titanium tetrachloride

Last Answer : (D) Aluminium triethyl combined with titanium tetrachloride

Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is (A) 7 kgf/cm2 and 70 °C (B) 1000 kgf/cm2 and 100°C (C) 7 kgf/cm2 and 700°C (D) 1 kgf/cm2 (gage) and 70°C

Description : Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is (A) 7 kgf/cm2 and 70 °C (B) 1000 kgf/cm2 and 100°C (C) 7 kgf/cm2 and 700°C (D) 1 kgf/cm2 (gage) and 70°C

Last Answer : (A) 7 kgf/cm2 and 70 °C

Catalyst used in the production of high density polythene by low pressure Ziegler process is(A) Aluminium triethyl activated with TiCl4(B) Platinum(C) Molybdenum(D) Nickel

Description : Catalyst used in the production of high density polythene by low pressure Ziegler process is (A) Aluminium triethyl activated with TiCl4 (B) Platinum (C) Molybdenum (D) Nickel

Last Answer : (A) Aluminium triethyl activated with TiCl4

Zeigler - Natta catalyst (AlR3 - AlCl3 ) is used in the polymerisation of (A) Vinyl acetate (B) Vinyl chloride (C) Propylene (D) Styrene

Description : Zeigler - Natta catalyst (AlR3 - AlCl3 ) is used in the polymerisation of (A) Vinyl acetate (B) Vinyl chloride (C) Propylene (D) Styrene

Last Answer : (C) Propylene

what is Zeigler-Natta catalyst?

Description : what is Zeigler-Natta catalyst?

Last Answer : Triethylaluminium (C2H5)3Al and titanium tetrachloride(TiCl4) Condensation polymerization or step growth: Since each step produces a functionalized species and is independent of each other,this is called step groth. As,monomers with ... NH2-(CH2)6-NH2] and Adipic acid[HOOC-(CH2)4-COOH in Nylon-6,6.

Pick out the wrong statement. (A) Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80% (B) Contact process of sulphuric acid manufacture produces pure acid of concentration ≥ 98% (C) 75% oleum can be produced by distillation of 20% oleum (D) Contact process of sulphuric acid manufacture uses nickel as the catalyst

Description : Pick out the wrong statement. (A) Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80% (B) Contact process of sulphuric acid manufacture produces pure acid of ... of 20% oleum (D) Contact process of sulphuric acid manufacture uses nickel as the catalyst

Last Answer : (D) Contact process of sulphuric acid manufacture uses nickel as the catalyst

__________ polythene is most prone to stress-cracking (A) High density (B) Low density (C) Cross-linked (D) Linear low density

Description : __________ polythene is most prone to stress-cracking (A) High density (B) Low density (C) Cross-linked (D) Linear low density

Last Answer : (A) High density

Low density polythene as compared to high density polythene is (A) Harder (B) Tougher (C) Chemically inert (D) More flexible

Description : Low density polythene as compared to high density polythene is (A) Harder (B) Tougher (C) Chemically inert (D) More flexible

Last Answer : (D) More flexible

Polythene (low or high density) containers are not corroded by (A) Sulphuric acid (10%) at room temperature (B) Nitric acid (95%) at room temperature (C) Sulphur trioxide at 60°C (D) Any of these

Description : Polythene (low or high density) containers are not corroded by (A) Sulphuric acid (10%) at room temperature (B) Nitric acid (95%) at room temperature (C) Sulphur trioxide at 60°C (D) Any of these

Last Answer : (A) Sulphuric acid (10%) at room temperature

Give one example of each for low density polythene and high density polthene.

Description : Give one example of each for low density polythene and high density polthene.

Last Answer : Ans: LDP. Squeze bottle and toys  HDP. Buckets, dustbin, bottles.

Density of low density polythene is about __________ gm/c.c. (A) 0.38 (B) 0.56 (C) 0.81 (D) 0.91

Description : Density of low density polythene is about __________ gm/c.c. (A) 0.38 (B) 0.56 (C) 0.81 (D) 0.91

Last Answer : (D) 0.91

Addition polymerisation is not involved in the manufacture of (A) Low density polythene (B) Poly vinyl chloride (C) Polystyrene (D) Polyhexamethylene adipamide

Description : Addition polymerisation is not involved in the manufacture of (A) Low density polythene (B) Poly vinyl chloride (C) Polystyrene (D) Polyhexamethylene adipamide

Last Answer : (D) Polyhexamethylene adipamide

which catalyst is used in HDP like polythene?

Description : which catalyst is used in HDP like polythene?

Last Answer : A. Zeigler-Natta catalyst. 

Hydrocracking employs (A) High pressure & temperature(B) Low pressure & temperature(C) High pressure and low temperature(D) High temperature and low pressure

Description : Hydrocracking employs (A) High pressure & temperature (B) Low pressure & temperature (C) High pressure and low temperature (D) High temperature and low pressure

Last Answer : (A) High pressure & temperature

Softening point of high density polythene is about __________ °C. (A) 85 (B) 135 (C) 165 (D) 205

Description : Softening point of high density polythene is about __________ °C. (A) 85 (B) 135 (C) 165 (D) 205

Last Answer : (B) 135

Density of high density polythene is about __________ gm/c.c. (A) 1.18 (B) 1.05 (C) 0.95 (D) 0.99

Description : Density of high density polythene is about __________ gm/c.c. (A) 1.18 (B) 1.05 (C) 0.95 (D) 0.99

Last Answer : (C) 0.95

Automobile steering wheels are normally made of (A) Cellulose acetate(B) Cellulose nitrate(C) PVC(D) High density polythene

Description : Automobile steering wheels are normally made of (A) Cellulose acetate (B) Cellulose nitrate (C) PVC (D) High density polythene

Last Answer : (A) Cellulose acetate

Transistor parts and refrigerator components are normally made of (A) Polystyrene (B) Polyester (C) High density polythene (D) Polyurethane

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In the manufacture of H3 PO4 (ortho); strong H2 SO4 leaching wet process as compared to electric furnace process (A) Uses lower grade phosphate rock (B) Requires lower capital investment in the plant(C) Produces lower purity acid(D) Is very costly

Description : In the manufacture of H3 PO4 (ortho); strong H2 SO4 leaching wet process as compared to electric furnace process (A) Uses lower grade phosphate rock (B) Requires lower capital investment in the plant (C) Produces lower purity acid (D) Is very costly

Last Answer : (C) Produces lower purity acid

Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m2 . Which of the following polymers has the maximum film elongation (of the order of 100%)? (A) Water impermeable cellophane(B) Polythene(C) Cellulose acetate(D) Teflon

Description : Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m2 . Which of the following polymers has the maximum film elongation (of the order of 100%)? (A) Water impermeable cellophane (B) Polythene (C) Cellulose acetate (D) Teflon

Last Answer : (B) Polythene

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Last Answer : (B) Adiabatic expansion through a throttle valve (Joule-Thomson expansion)

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Last Answer : (C) Removing some quantity of SO3 during intermediate stage

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