Question

$ {{H}_{2}}S $ is more acidic than $ {{H}_{2}}O $ , due to:

• A. O is more electronegative than S
• B. $ O-H $ bond is stronger than $ S-H $ bond
• C. $ O-H $ bond is weaker than $ S-H $ bond
• D. none of these

Answer 1

Answer: (B)

The acidity of hydridies of VI group elements, increase from top to bottom as the bond strength X-H decrease from top to bottom, $ {{H}_{2}}O<{{H}_{2}}S<{{H}_{2}}Se<{{H}_{2}}Te $