MCQ
Which is not possible
- A$ICl_3$
- B$I_3^-$
- ✓$ClBr_7$
- D$BeF_4^{-2}$
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$(a)$ The vapour pressure of water at $280 K$ is $14.2$ $mm Hg$
$(b)$ $R =0.082 L$ atm $K ^{-1} mol ^{-1}$