MCQ
Incorrect statement for the given configuration $[Xe]\,4f^7\,5d^1\,6s^2$
- ✓It placed in $d-$ block, $IIIB$ group, $6^{th}$ period
- BIt is a natural element
- CIt have maximum unpaired $e^-$ in lanthanoids
- DIt is $Gd$
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Figure $\xrightarrow[{(ii)\,\,NaB{D_4}}]{{(i)\,\,Hg{{(OAc)}_2}\,{H_2}O}}Q$
Figure $\xrightarrow[{(ii)\,\,{H_2}{O_2}\,/\,O{H^ - }}]{{(i)\,\,B{D_6}\,,\,THF}}R$
Products $P, Q$ and $R$ are
$ -\mathrm{OCH}_3,-\mathrm{NO}_2,-\mathrm{CN},-\mathrm{CH}_3-\mathrm{NHCOCH}_3, $
$ -\mathrm{COR},-\mathrm{OH},-\mathrm{COOH},-\mathrm{Cl}$
Which of these structures is practically not a valid canonical structure for formaldehyde ?
$NH_3{_{(g)}}\ \rightleftharpoons \ \frac {1}{2} {N_2}_{(g)} + \frac {3}{2} {H_2}_{(g)}$ ; $K_P$
The degree of dissociation $(\alpha )$ of $NH_3$ is related to total equilibrium pressure $(P^o )$ as