MCQ
Given, $pH$ of a solution $A$ is $3$ and it is mixed with another solution $B$ having $pH\,2$. If both are mixed in equal volume, then the resultant $pH$ of the solution will be
- A$3.2$
- B$1.9$
- C$3.4$
- ✓$2.2$
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$I$. Valence bond theory cannot explain the color exhibited by transition metal complexes
$II$. Valence bond theory can predict quantitatively the magnetic properties of transition metal complexes
$III$. Valence bond theory cannot distinguish ligands as weak and strong field ones
$[A]$ $\mathrm{A} 1\left(\mathrm{CH}_3\right)_3$ has the three-centre two-electron bonds in its dimeric structure
$[B]$ $\mathrm{BH}_3$ has the three-centre two-electron bonds in its dimeric structure
$[\mathrm{C}] \mathrm{AlCl}_3$ has the three-centre two-electron bonds in its dimeric structure
$[D]$ The Lewis acidity of $\mathrm{BCl}_5$ is greater than that of $\mathrm{AlCl}_5$