MCQ
The shape of $SO_4^{2 - }$ ion is
- ASquare planar
- ✓Tetrahedral
- CTrigonal bipyramidal
- DHexagonal
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$A.$ Surface tension is the outcome of equal attractive and repulsion forces acting on the liquid molecule in bulk.
$B.$ Surface tension is due to uneven forces acting on the molecules present on the surface.
$C.$ The molecule in the bulk can never come to the liquid surface.
$D.$ The molecules on the surface are responsible for vapour pressure if the system is a closed system.