MCQ
Transition metals show paramagnetism
  • A
    Due to characteristic configuration
  • B
    High lattice energy
  • C
    Due to variable oxidation states
  • Due to unpaired electrons

Answer

Correct option: D.
Due to unpaired electrons
d
(d)Paramagnetic character is actually due to presence of unpaired electrons.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Consider the half-cell reduction reaction

$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

Product $(Z)$ is
Aluminium oxide is not reduced by chemical reactions since
The frequency of radiation emitted when the electron falls from $n = 4$ to $n = 1$ in a hydrogen atom will be (Given ionization energy of $H$ $ = 2.18 \times {10^{ - 18}}J\,\,\,{\rm{ato}}{{\rm{m}}^{ - 1}}$ and $h = 6.625 \times {10^{ - 34}}\,Js)$
When chlorine is passed over dry slaked lime at room temperature, the main reaction product is
The values of for the reactions,

$X \rightleftharpoons  Y + Z$        $...(i)$

$A \rightleftharpoons  2B$            $...(ii)$

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

$STATEMENT$-$1$: $p$-Hydroxybenzoic acid has a lower boiling point than $o$-hydroxybenzoic acid. because

$STATEMENT$-$2$: $o$-Hydroxybenzoic acid has intramolecular hydrogen bonding.

Compound $\mathrm{A}$ formed in the following reaction reacts with $B$ gives the product $C$. Find out $A$ and $B$.
Which of the following attacks glass
Total number of essential amino acid among the given list of amino acids is . . . . 

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