which of the following is synthetic rubber

Options :
  1. Buna -S
  2. Neoprene
  3. Both 1 and 2
  4. none of these

Answer and Explanation :-

Answer: Option 3


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Romantic haste in drama bringstears and sighs when the hero diesbut the curtain fall is finalwhen in life we take the tragic wayThe sunset too is a glorious thingbut with it ends the day.
-C. P. Klapper The Washington Poems