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Which of the following condition is not true for the formation of Bakelite?

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+1 vote
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in Engineering Chemistry I by (506k points)
Which of the following condition is not true for the formation of Bakelite?

(a) Excess of phenol

(b) Excess of formaldehyde

(c) Acid catalyst

(d) Heat and curing agent

I have been asked this question in an interview for internship.

This interesting question is from Thermosetting Polymers in portion Polymers of Engineering Chemistry I

1 Answer

+1 vote
by (1.2m points)
Correct choice is (b) Excess of formaldehyde

To explain: Excess of formaldehyde is not required for the formation of Bakelite. Excess of phenol is required in the formation of Bakelite and it also requires an acid catalyst and heat and curing agent.

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