Novolac on heating with formaldehyde undergoes ___________ to form an – InterviewSolution

1.	Novolac on heating with formaldehyde undergoes ___________ to form an infusible solid mass called ____________ .A. polymerisation , melamineB. vulcanisation , resinC. cross-linking, bakeliteD. condensation, polystyrene
Answer» Correct Answer - C

Discussion

No Comment Found

Related InterviewSolutions

The bakelite is made from phenol and formaldehyde. The initial reaction between the two compounds is an exmaple of:A. Aromatic electrophilic substitutionB. Aromatic nucleophilic substitutionC. Free radical reactionD. Aldol reaction
Of the following which is a step growth polymer?A. BakeliteB. PolyethyleneC. TeflonD. PVC
Polyacrylonitile is an exmaple of:A. addition polymerB. condensation polymerC. natural polymerD. None of these
Of the following which is a step growth polymer?A. BakeliteB. PolythyleneC. TeflonD. PVC
Which one of the following is not an exmaple of chain growth polymer?A. NeopreneB. Buna-SC. PMMAD. Glyptal
Which is an exmaple of thermosetting polymer?A. PolytheneB. NeopreneC. PVCD. Bakelite
Which type of polymer is cellulose diacetate fibre ?A. SyntheticB. NaturalC. Semi-syntheticD. None of these
Cellulose is a polymer ofA. Glucose and fructoseB. fructoseC. riboseD. sucrose
Alizarin is an example ofA. triaryl dyeB. azo dyeC. vat dyeD. anthraquinone dye
2,4-Dichlorphenoxyacetic acid is used asA. fungicideB. insecticideC. herbicideD. moth repellant