Q50.The polymer formed on heating Novolac with formaldehyde is: (1) Polyester (2) Bakelite (3) Nylon- 6, 6 (4) Melamine
What This Question Tests
This question directly tests knowledge of common polymer formation reactions, specifically the conversion of Novolac to Bakelite via cross-linking with formaldehyde.
Concepts Tested
📚 NCERT Sections This Tests
8.17 — Complete Each Synthesis By Giving Missing Starting Material, Reagent Or Products
Chemistry Class 12 · Chapter 8
8.17 Complete each synthesis by giving missing starting material, reagent or products
8.5 — Draw Structures Of The Following Derivatives.
Chemistry Class 12 · Chapter 8
8.5 Draw structures of the following derivatives. (i) The 2,4-dinitrophenylhydrazone of benzaldehyde (ii) Cyclopropanone oxime (iii) Acetaldehydedimethylacetal (iv) The semicarbazone of cyclobutanone (v) The ethylene ketal of hexan-3-one (vi) The methyl hemiacetal of formaldehyde 255 Aldehydes, Ketones and Carboxylic Acids Reprint 2025-26
7.17 — Give Equations Of The Following Reactions:
Chemistry Class 12 · Chapter 7
7.17 Give equations of the following reactions: (i) Oxidation of propan-1-ol with alkaline KMnO4 solution. (ii) Bromine in CS2 with phenol. (iii) Dilute HNO3 with phenol. (iv) Treating phenol wih chloroform in presence of aqueous NaOH.
📋 Question Details
- Chapter
- Polymers
- Topic
- Phenol-formaldehyde polymers
- Year
- 2021
- Shift
- 26 Aug Shift 1
- Q Number
- Q50
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 15: Polymers
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