Sn → SnO → Sn(NO3)2 → Sn(OH)2 → Na2SnO2 → SnSO4 → SnCl2.

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The above reaction sequence involves the transformation of tin (Sn) through various chemical compounds. Here is the breakdown of each step in the reaction sequence:

Sn (Tin metal) undergoes oxidation to form SnO (Tin oxide).SnO reacts with nitric acid to form Sn(NO3)2 (Tin(II) nitrate).Sn(NO3)2 undergoes hydrolysis to form Sn(OH)2 (Tin hydroxide).Sn(OH)2 reacts with sodium hydroxide to form Na2SnO2 (Sodium stannate).Na2SnO2 reacts with sulfuric acid to form SnSO4 (Tin(II) sulfate).SnSO4 reacts with hydrochloric acid to form SnCl2 (Tin(II) chloride).

This reaction sequence demonstrates the transformation of tin through various stages of oxidation, hydrolysis, and acid-base reactions to form different inorganic tin compounds.