The correct sequence representing the increasing acidic strength of Group 16 hydrides in aqueous sol — p Block Elements Chemistry Question

💡 Solution & Explanation

As we move down Group 16, the atomic radius increases, which leads to a longer and consequently weaker $H-E$ bond (where E is the chalcogen). The ease of proton ($H^+$) release increases, resulting in increasing acidic strength from $H_2O$ to $H_2Te$.