MCQ
In solid argon, the atoms are held together by
- AIonic bonds
- BHydrogen bonds
- ✓Vander Waals forces
- DHydrophobic forces
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(Assume water vapour to behave like an ideal gas)
$R - Br + C{l^ - }\xrightarrow{{DMF}}R - Cl + B{r^ - }$ ,
which one of the following undergoes complete inversion of configuration?
$I.$ There is no $P_{\pi } -P_{\pi }$ bonds present in the molecule
$II.$ There are eight lone pair of electrons
$III.$ Each $S$ atom is $sp^3$ hybridised