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Arrange the following in order of proper...

Arrange the following in order of property indicated for each set:
`(i) H_(2)O,H_(2)S,H_(2)Se,H_(2)Te` - Increasing acidic character
(ii) `HF,HCl,HBr,HI` - decreasing bond enthalpy

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(i) `H_(2)OltH_(2)SltH_(2)SeltH_(2)Te` (ii) `HFltHClltHBrltHI`
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