MCQ
Correct acidic nature is
  • $HNO_3\, >\, H_3AsO_4\, >\, H_3PO_4$
  • B
    $HOF\, >\, HOBr\, >\, HOCl\, >\, HOI$
  • C
    $HClO_4\, >\, HBrO_4\, >\, HIO_4$
  • D
    $N_2O\, >\, NO\, >\, N_2O_3$

Answer

Correct option: A.
$HNO_3\, >\, H_3AsO_4\, >\, H_3PO_4$
a
The $S_6$ molecule has a chair-form hexagon ring with the same bond length as that in $S_8$, but with some what smaller bond angles i.e. bond lengths are same but bond angles are different   

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