Multiple choice Which among the following properties follows the trend H2O > H2S > H2Se > H2Te? Acidic strength and reducing nature Bond angle and thermal stability Acidic strength and thermal stability Acidic strength and bond angle Bond angle and reducing nature Reveal answer Fill a bubble to check yourself B Correct answer Explanation H-E-H bond angle as well as thermal stability of group 16 hydrides decrease down the group, i.e. H2O > H2S > H2Se > H2Te.