Consider the following statements :
$S_{1}$ : The percentage of s-character in the orbital forming $S - S$ bonds and $P - P$ bonds in $S_{8}$ and $P_{4}$ molecule respectively are not same.
$S_{2}$ : In $S F_{4}$ the bond angles, instead of being $90^{\circ}$ and $180^{\circ}$ are $89^{\circ}$ and respectively due to the repulsion between lone pair and bond pair of electrons,
$S_{3}$ : Aqueous $H_{3} P O_{4}$ is syrupy (i.e. more viscous than water).
$S_{4}$ : $S i O_{2}$ crystal may be considered as giant molecule in which eight-membered rings are formed with alternate silicon and oxygen atoms of these.

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$S_{1}$ and $S_{2}$ are correct only

$S_{2}$ , $S_{3}$ and $S_{4}$ are correct only

All statements above are correct

$S_{1}$ , $S_{2}$ and $S_{a}$ are correct only

answer is C.

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Detailed Solution

$S_{1}$ : The percentage of s-character in the orbital forming $S - S$ bonds and $P - P$ bonds in $S_{8}$ and $P_{4}$ molecule respectively are not same.
$S_{2}$ : In $S F_{4}$ the bond angles, instead of being $90^{\circ}$ and $180^{\circ}$ are $89^{\circ}$ and respectively due to the repulsion between lone pair and bond pair of electrons,