MHT CET 2025 Chemistry question
Identify the correct order of acidity of hydrides of 16 group elements from the following.
Answer: (C)
Solution
Acidity of the group 16 hydrides depends on the ease of losing , which depends on the H-E bond strength. Going down the group, the size of E increases, the E-H bond length increases and the bond dissociation enthalpy decreases (H-O 463 kJ/mol, H-S 347, H-Se 276, H-Te 238), so
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