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Q.

In which of the following bakelite, the phenol and formaldehyde polymer ‘plastic’ is not used ?

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a

Gramophone records

b

Combs and fountain pen

c

Paints

d

Electric fuses

answer is C.

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Detailed Solution

Being a good insulator, bakelite is used in the electric devices as wire insulation, socket, switches and in the non-conductive parts of radio and other instruments.

It is not used in the manufacturing of dye or paint.

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