Question

P, Q and R are 3 elements which undergo
chemical reactions according to the following
equations:
(0) P2O3 + 2Q - Q2O3 + 2P
(ii) 3RSO4 + 2Q- Q2(SO4)3 + 3R
(iii) 3RO + 2P - P203 + 3R
Answer the following:
(A) Which element is most reactive?
(B) Which element is least reactive?
(C) State the type of reaction listed above.​

Answer 1

Answer:

A) ii

B) iii

C) displacement reaction