In salts of polyatomic anions

CHEMISTRY · Single correct · CBSE · Chemistry · Chemical Reactions and Equations · Chemical Reactions and Equations

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. Which of the following species undergoes non-redox thermal decomposition on heating? (1) FeSO4\mathrm{FeSO_4} (2) SnSO4\mathrm{SnSO_4} (3) H2C2O4\mathrm{H_2C_2O_4} (4) Na2HPO4\mathrm{Na_2HPO_4}

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