Window panes of aeroplanes are normally made of (A) Perspex (PMMA) (B) Teflon (PTFE) (C) Bakelite (phenol formaldehyde) (D) Polystyrene

Window panes of aeroplanes are normally made of
(A) Perspex (PMMA)
(B) Teflon (PTFE)
(C) Bakelite (phenol formaldehyde)
(D) Polystyrene
by

1 Answer

Answer :

Option A
by

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