P, Q and R are 3 elements which undergo chemical reactions according t

1.	P, Q and R are 3 elements which undergo chemical reactions according to the following equations - (a) P2O3 + 2Q → Q2O3 + 2P(b) 3RSO4 + 2Q → Q2 (SO4)3 + 3R(c) 3RO + 2P → P2O3 + 3RAnswer the following :(i) Which element is more reactive?(ii) Which element is least reactive?(iii) State the type of reaction listed above.
Answer» (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 (ii) Element R is least reactive as it has been replaced by both R and Q. (iii) Displacement reaction.

P, Q and R are 3 elements which undergo chemical reactions according to the following equations - (a) P2O3 + 2Q → Q2O3 + 2P(b) 3RSO4 + 2Q → Q2 (SO4)3 + 3R(c) 3RO + 2P → P2O3 + 3RAnswer the following :(i) Which element is more reactive?(ii) Which element is least reactive?(iii) State the type of reaction listed above.

Answer»

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(ii) Element R is least reactive as it has been replaced by both R and Q.

(iii) Displacement reaction.