The X formed in the following reaction sequence and its structural type are respectively.
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- Novolac - linear polymer
- Bakelite - cross linked polymer
- Novolac - cross linked polymer
- Bakelite - linear polymer
The Correct Option is B
Solution and Explanation
The reaction sequence shown is for Bakelite synthesis, which is a cross-linked polymer. The initial reaction involves the condensation of formaldehyde (HCHO) with phenol, followed by polymerisation under heat. This results in a three-dimensional network, characteristic of Bakelite, which is a cross-linked polymer.
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