Question

which of the following is used to tell the bakelite substance
1)hot pin test
2) cold pin test
3)soft pin test
4)sharp pin test​

Answer 1

The Smell Test

Rub the item in question vigorously with your thumb until you feel the plastic heat up. Then, before it cools, take a whiff. A distinct chemical odor similar to formaldehyde will linger with most genuine Bakelite.

Hope it's an right answer

Answer 2

Answer:

3) soft pin test

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