Phenol formaldehyde
(A) Employs addition polymerisation
(B) Employs condensation polymerisation
(C) Is a monomer

1 Answer

Answer :

(B) Employs condensation polymerisation

Related questions

Description : Phenol formaldehyde (A) Employs addition polymerisation (B) Employs condensation polymerisation (C) Is a monomer (D) Is an abrasive material

Last Answer : (B) Employs condensation polymerisation

Description : Phenol formaldehyde is produced by condensation polymerisation. It is also known as (A) Teflon (B) Bakelite (C) Polyester (D) Nylon-66

Last Answer : (B) Bakelite

Description : Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin. (A) Resorcinol (B) Phenol (C) Para-cresol (D) Melamine

Last Answer : (D) Melamine

Description : Condensation polymerisation of __________ produces Bakelite. (A) Propylene (B) Phenol & formaldehyde (C) Phenol & acetaldehyde (D) Urea & formaldehyde

Last Answer : (B) Phenol & formaldehyde

Description : Phenol formaldehyde is produced by condensation polymerisation. It is also known as (A) Teflon (B) Bakelite (C) Polyester (D) Nylon-66

Last Answer : (B) Bakelite

Description : In condensation polymerisation as compared to addition polymerisation (A) The monomers are unsaturated compounds (B) No co-product is lost (C) The monomers contain two functional groups (D) Generally only one monomer is involved

Last Answer : (C) The monomers contain two functional groups

Description : Which of the following is produced by addition polymerisation? (A) Polybutadiene (B) Phenol formaldehyde (C) Urea-formaldehyde (D) Dacron

Last Answer : (A) Polybutadiene

Description : Teflon is (A) Phenol formaldehyde (B) An inorganic polymer (C) Polytetrafluroethylene (PTFE) (D) A monomer

Last Answer : (C) Polytetrafluroethylene (PTFE)

Description : Teflon is (A) Phenol formaldehyde (B) An inorganic polymer (C) Poly tetra-fluoro-ethylene (P.T.F.E.) (D) A monomer

Last Answer : (C) Poly tetra-fluoro-ethylene (P.T.F.E.)

Description : In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of (A) Cross linked polystyrene (B) Phenol formaldehyde resins (C) Polyesters (D) Polyamides

Last Answer : (A) Cross linked polystyrene

Description : __________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine. (A) Epoxy (B) Amino (C) Alkyd (D) Phenolic

Last Answer : (B) Amino

Description : Bisphenol A is produced by the condensation of acetone with (A) Formaldehyde (B) Ethyl alcohol (C) Diethyl ether (D) Phenol

Last Answer : (D) Phenol

Description : Pick out the wrong statement. (A) Linear polymers are formed from bifunctional groups only and are normally thermoplastic (B) Cross-linked branched chain polymers are either elastometric or ... (D) Dibasic acids reacts with dihydric alcohols to give polyesters using addition polymerisation reaction

Last Answer : D) Dibasic acids reacts with dihydric alcohols to give polyesters using addition polymerisation reaction

Description : Which one of the following polymers is obtained from condensation polymerization? (A) Phenol formaldehyde (B) Carbamide (C) Melamine-formaldehyde (D) All of these

Last Answer : Answer: Option D

Description : Pick out the wrong statement. (A) Addition polymers are generally formed by chain growth polymerisation (B) Condensation polymers are generally formed by step growth polymerisation (C) Teflon is formed by step growth polymerisation (D) Bakelite is formed by step growth polymerisation

Last Answer : C) Teflon is formed by step growth polymerisation

Description : Polythene is a/an (A) Addition polymerisation product (B) Condensation polymerisation product (C) Thermosetting material (D) None of these

Last Answer : (A) Addition polymerisation product

Description : Polythene is a/an __________ polymerisation product. (A) Addition (B) Condensation (C) Thermosetting (D) None of these

Last Answer : (A) Addition

Description : Differentiate between addition and condensation polymerisation process with suitable examples.

Last Answer : Addition polymerization  Condensation polymerization 1)the polymerization reaction involves the joining of unsaturated monomers by breaking of bonds in a chain like manner without loss of any by ... thermosetting polymers Example: pvc(poly vinyl chloride) Example: formaldehyde

Description : Commercial production of polypropylene employs __________ polymerisation. (A) Emulsion (B) Suspension (C) Solution (D) Bulk

Last Answer : (C) Solution

Description : Pick out the wrong statement. (A) Cold SBR is superior as compared to hot SBR (B) Polymerisation temperature can modify the properties of SBR (C) Production of cold SBR employs lower pressure as compared to that of hot SBR (D) None of these

Last Answer : (D) None of these

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

Description : Pick out the wrong statement (A) Cold rubber (SBR) is superior as compared to hot rubber (SBR) (B) Polymerisation temperature can modify the properties of SBR (C) Production of cold SBR employs lower pressure as compared to that of hot SBR (D) None of these

Last Answer : (D) None of these

Description : A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved ... Siloxane elastomers (B) Polyamides (C) Vinyl polymers (D) Urea-formaldehyde resins

Last Answer : (D) Urea-formaldehyde resins

Description : The rate controlling step in the manufacture of silicone rubber is the (A) Polymer termination step (B) Condensation of siloxane to silicone (C) Initial hydrolysis of silicone monomer (D) None of these

Last Answer : (C) Initial hydrolysis of silicone monomer

Description : Bakelite (phenol-formaldehyde) resin cannot be used as (A) Decorative paint (B) Decorative laminates (C) Electrical insulation (D) Glass reinforced plastics

Last Answer : (A) Decorative paint

Description : Which of the following is an elastomer? (A) Thiokol (B) Phenol formaldehyde (C) Urea formaldehyde (D) Polystyrene

Last Answer : (A) Thiokol

Description : In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross￾linked polymer? (A) Bakelite (phenol formaldehyde) (B) Polyester (C) Polythene (D) Nylon-6

Last Answer : (A) Bakelite (phenol formaldehyde)

Description : Neoprene is the trade name of (A) Polyurethane (B) Phenol formaldehyde (C) Polychlorophrene (D) Styrene butadiene rubber (SBR)

Last Answer : (C) Polychlorophrene

Description : Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins. (A) Epoxy (B) Phenol formaldehyde (C) Urea formaldehyde (D) Melamine formaldehyde

Last Answer : (C) Urea formaldehyde

Description : Bakelite is (A) Same as Polytetrafluoroethylene (PTFE) (B) An inorganic polymer (C) Same as thermoset phenol formaldehyde (D) Not a polymer

Last Answer : (C) Same as thermoset phenol formaldehyde

Description : __________ is never shipped in glass carboys. (A) Ammonia (B) Acetic acid (C) Phenol (D) Formaldehyde

Last Answer : (A) Ammonia

Description : Bakelite is (A) Same as Polytetrafluoroethylene (PTFE) (B) An inorganic polymer (C) Same as thermosetting phenol-formaldehyde (D) Not a polymer

Last Answer : (C) Same as thermosetting phenol-formaldehyde

Description : Phenol formaldehyde resin is used as an adhesive in making (A) Laminates (B) Card boxes (C) Furniture (D) Books

Last Answer : (A) Laminates

Description : Catalytic oxidation-dehydrogenation of methyl alcohol produces (A) Formaldehyde (B) Phenol (C) Acetone (D) Maleic anhydride

Last Answer : (A) Formaldehyde

Description : Bakelite is chemically known as (A) Polyvinyl chloride (PVC) (B) Polybutadiene (C) Phenol formaldehyde (D) Polyurethane

Last Answer : (C) Phenol formaldehyde

Description : Neoprene is the trade name of (A) Polyurethane (B) Phenol formaldehyde (C) Polychlorophrene (D) Styrene-butadiene rubber

Last Answer : (C) Polychlorophrene

Description : Fourdrinier machine is used in the manufacture of (A) Sugar (B) Paper (C) Alcohol from molasses (D) Phenol formaldehyde

Last Answer : (B) Paper

Description : __________ is produced using Polycondensation reaction. (A) Polythene (B) Phenol formaldehyde (C) Poly vinyl chloride (D) None of these

Last Answer : (B) Phenol formaldehyde

Description : Window panes of aeroplanes are normally made of (A) Perspex (PMMA) (B) Teflon (PTFE) (C) Bakelite (phenol formaldehyde) (D) Polystyrene

Last Answer : Option A

Description : In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is (A) Terylene (B) Polybutadiene (C) PVC (D) Polypropylene

Last Answer : (A) Terylene

Description : Dacron is a (A) Condensation polymerisation product of Hexamethylene diamine and adipic acid (B) Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol (C) Thermosetting material (D) None of these

Last Answer : (D) None of these

Description : Condensation polymerisation of caprolactam is carried out in the reactor maintained at a temperature of __________ °C for producing nylon- 6. (A) -20 to 25 (B) 50 to 75 (C) 100 to 150 (D) 250-280

Last Answer : (D) 250-280

Description : Condensation polymerisation is not involved in the manufacture of (A) Teflon (B) Polythene (C) Terylene (D) Nylon

Last Answer : (B) Polythene

Description : . Polyvinyl chloride (PVC) is (A) A thermosetting material (B) A condensation polymerisation product (C) Made by employing emulsion polymerisation (D) None of these

Last Answer : (C) Made by employing emulsion polymerisation

Description : Polycaprolactam (Nylon - 6) is produced by the condensation polymerisation of caprolactam at 240-280°C in which the conversion of caprolactam is about __________ percent. (A) 50 (B) 75 (C) 90 (D) 99

Last Answer : (C) 90

Description : 90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ °C. (A) -5 (B) 10-30 (C) 250-280 (D) 500-600

Last Answer : (C) 250-280

Description : Which of the following is produced by condensation polymerisation? (A) Bakelite (B) Polythene (C) Poly vinyl chloride (D) Polystyrene

Last Answer : (A) Bakelite

Description : . Polyvinyl chloride (PVC) is (A) A thermosetting material (B) A condensation polymerisation product (C) Made by employing emulsion polymerisation (D) None of these

Last Answer : (C) Made by employing emulsion polymerisation

Description : 90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C. (A) < 0 (B) 10-30 (C) 250-280 (D) 500-600

Last Answer : (B) 10-30

Description : The bakelite is made from phenol and formaldehyde. The initial reaction between the two compounds is an exmaple of:

Last Answer : The bakelite is made from phenol and formaldehyde. The initial reaction between the two compounds is ... C. free radical reaction D. aldol reaction