question_answer

Direction: Rearrange P, Q, R and S to produce correct sentences by selecting the correct options.

Charles Goodyear once accidentally

P: and found that the resulting rubber

Q: dropped a mixture of natural rubber

R: was harder, stronger, more elastic and non-sticky

S: and sulphur over a hot stove

A)  PSQR                          

B)  QSPR

C)  RSQP              

D)  SQPR

E)  None of these