How is the cross-linking of novolacs better accomplished along with the presence of additional formaldehyde?

How is the cross-linking of novolacs better accomplished along with the presence of additional formaldehyde? Correct Answer use of basic catalyst

The cross-linking of novolacs is better accomplished using a basic catalyst. An insoluble, infusible, cross-linked polymer products is then formed in a single step.
Bissoy MCQ

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