Question

explain why h2te is more acidic than h2s

Answer 1

1) becoz te size is larger thn S so the force which attract the e- is less , due to the larger size of Te 

2) Te present at 5th period in periodic table while S in 3rd so on going down the group the bond dissociation enthalpy  decreased therefor acidic character increases

Answer 2

Dur to the decrease in bond dissociation enthalpy down the group,acidic character increases.