MCQ
Transition metals show paramagnetism
- ADue to characteristic configuration
- BHigh lattice energy
- CDue to variable oxidation states
- ✓Due to unpaired electrons
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$Mn^{2+} + 2e^- \rightarrow Mn,\, $$E^o = - 1.18\, V$
$Mn^{2+} \rightarrow Mn^{3+} + e^-,$ $ E^o = - 1.51 \,V$
The $E^o$ for the reaction $3Mn^{2+} \rightarrow Mn^o + 2Mn^{3+},$
and possibility of the forward reaction are respectively

$X \rightleftharpoons Y + Z$ $...(i)$
$A \rightleftharpoons 2B$ $...(ii)$
are in the ratio $9 : 1.$ If degree of dissociation of $X$ and $A$ be equal, then total pressure at equilibrium $(i)$ and $(ii)$ are in the ratio
$STATEMENT$-$2$: $o$-Hydroxybenzoic acid has intramolecular hydrogen bonding.

Arginine, Phenylalanine, Aspartic acid, Cysteine, Histidine, Valine, Proline