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

Arrange the following in order of property indicated for each set: `(i

1.	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
Answer» (i) `H_(2)OltH_(2)SltH_(2)SeltH_(2)Te` (ii) `HFltHClltHBrltHI`

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(i) Arrange the following compounds in an increasing order of basic strength : `C_(6)H_(5)NH_(2), C_(6)H_(5)N(CN_(3))_(2), (C_(2)H_(5))_(2)NH and CH_(3)NH_(2)` (ii) Arrange the following compounds in a decreasing order of `pK_(b)` values: `C_(2)H_(5)NH_(2), C_(6)H_(5)NHCH_(3), (C_(2)H_(5))_(2) NH and C_(6)H_(5)NH_(2)`
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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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