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In Ester cured alkaline phenolic, what is used as a coreactant?

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in Casting-Forming-Welding II by (119k points)
In Ester cured alkaline phenolic, what is used as a coreactant?

(a) A phenol

(b) A ketone

(c) An ester

(d) An aldehyde

I had been asked this question during an interview for a job.

I need to ask this question from Gas-Vapour Cured Resin Binders topic in division Binder Technology of Casting-Forming-Welding II

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Correct choice is (c) An ester

The explanation: In Ester cured alkaline phenolic, there is an ester called methyl formate, which is usually used as a coreactant.

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