Question

Which one is the most stable carbonate? *
(a) BaCO3
(b) MgCO3
(c) CaCO3
(d) BeCO3

Answer 1

(a)BaCO3

BaCO3 is more thermally stable because polarising power of Ba2+ is less than other alkaline earth metals and thermal stability is inversely proportional to polarising power of action when compound containing polyatomic anion and here carbonate is polyatomic anion.

Answer 2

Answer:

(b) answer answer

Explanation:

answer( b) answer