Thermocol is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten (A) Saturated polyester (B) Polyurethane (C) Polystyrene (D) Either (B) or (C)

Thermocol is a spongy, porous, rigid or flexible foamed plastic,
obtained by blowing gas/air through molten
(A) Saturated polyester
(B) Polyurethane
(C) Polystyrene
(D) Either (B) or (C)
by

1 Answer

Answer :

(D) Either (B) or (C)
by

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