Number of S — S bond is H2SnO6 : — Chemical Bonding Chemistry Question

💡 Solution & Explanation

Step 1: Polythionic acids H2S_nO6 have a chain of n sulfur atoms bonded together, with terminal sulfonic acid groups (HO-SO2-S_(n-2)-SO2-OH). Step 2: The sulfur atoms are connected in a linear chain: S-S-S...S of length n. Step 3: For a chain of n atoms connected by single bonds, the number of linkages (S-S bonds) is exactly n - 1.