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 (ii) Element R is least reactive as it has been replaced by both P and Q. (iii) Displacement reaction