A) \[{{H}_{2}}S\]
B) \[{{H}_{2}}O\]
C) \[{{H}_{2}}Se\]
D) \[{{H}_{2}}Te\]
Correct Answer: D
Solution :
Stability of hydride decreases down the group and electropositive character increases down the group. Therefore, acidic character increases down in a group. So, the correct order is: \[{{H}_{2}}O<{{H}_{2}}S<{{H}_{2}}Se<{{H}_{2}}Te\]
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