CHEMISTRY · Single correct · CBSE · Chemistry · d- and f-Block Elements · d- and f-Block Elements
Problem
In salts of polyatomic anions, as the polarising power of the cation increases, the thermal stability of the salt decreases and the decomposed species may further undergo a redox reaction.
A water-soluble salt X was heated into three products A, B, and C. B and C are two different paramagnetic gases. A is red when hot. What is salt X?
(1) Hg(NO3)2
(2) FeC2O4
(3) ZnSO4
(4) Pb(NO3)2