Bakelite is classified as a thermosetting plastic because it:
Cannot be remoulded once hardened
Thermosetting plastics undergo a permanent chemical change on heating, forming extensive cross-links between polymer chains during moulding.
Bakelite is a poor conductor of electricity and does not dissolve in water, so these properties do not explain its classification.
Once Bakelite is moulded and set through this cross-linking reaction, it becomes rigid and infusible, meaning it cannot be melted or reshaped again, unlike thermoplastics which soften and can be remoulded on heating.
Hence, the correct answer is that Bakelite cannot be remoulded once hardened.
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Important Questions from Organic Chemistry
Which of the hydrocarbons are arranged as per the increasing order of their boiling points?
Which one of the following statements is NOT correct?
Which among the following statements with respect to carbon is/are correct?
1. Carbon forms the basis for all living organisms and many things we use
2. Carbon shows tetra-valency and the property of catenation
3. Carbon forms covalent bonds with itself and other elements
4. Carbon forms compounds containing triple and tetra bonds between carbon atoms
Select the correct answer using the code given below:
Which one of the following statements about diamond and graphite is not correct?
Which one of the following cell organelles does NOT possess nucleic acid?
