P, Q and R are 3 elements which undergo chemical reactions according to the following equations:
Answer the following:
(i) Which element is most reactive?
(ii) Which element is least reactive?
(iii) State the type of reaction listed above.
(i) Most reactive metal is Q as it has replaced both P and R from their compounds.
(ii) Element R is least reactive as it has been replaced by both P and Q.
(iii) Displacement reaction