Transition metals are often paramagnetic owing to: - Vidyadip

MCQ

Transition metals are often paramagnetic owing to:

A
High $m.p.$ and $b.p.$ of transition metals.
B
Presence of vacant $d-$orbitals.
✓
Presence of one or more unpaired $d-$electrons.
D
Their less electropositive nature as compared to the elements of groups $IA$ and $\text{IIA}.$

✓

Answer

Correct option: C.

Presence of one or more unpaired $d-$electrons.

The general outer electronic configuration of $d-$block elements is $(n-1) d^{1-10} n s^{1-2}.$ Hence$, d -$ block elements often have one or more unpaired $d -$ electrons.
Due to presence of these unpaired electrons, transition elements show paramagnetism.
Therefore transition elements are often paramagnetic due to presence of one or more unpaired $d$ 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

Explore more

More "M.C.Q (1 Marks)" from The d & f Block Elements→The d & f Block Elements — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

$5\, g$ of $Na_2SO_4$ was dissolved in $x\,g$ of $H_2O$. The change in freezing point was found to be $3.82\,^oC$. lf $Na_2SO_4$ is $81.5\%$ ionised, the value of $x$ ($K_f$ for water $= 1.86\,^oC\, kg\, mol^{-1}$) is approximately .............. $\mathrm{g}$ (molar mass of $S = 32\, g\, mol^{-1}$ and that of $Na = 23\, g\, mol^{-1}$)

If the order of the reaction $x+y\xrightarrow{hv}x\,y$ is zero, it means that the rate of

Which of the following is not the mineral of sulphur ?

The total number of unpaired electrons present in the complex $K _{3}\left[ Cr \right.$ (oxalate) $\left._{3}\right]$ is ..........

The functional groups that are responsible for the ion-exchange property of cation and anion exchange resins, respectively, are :

$C{H_3} - C{H_2} - OH\,\xrightarrow[\Delta ]{{C{l_2}\,/\,O{H^\Theta }}}A$ $\xrightarrow[\Delta ]{{Ag}}B\,\xrightarrow[{1\,\% \,\,HgS{O_4}}]{{20\,\,\% \,\,{H_2}S{O_4}\,,\,{H_2}O}}C$

Compound $'C'$ is

Which enzyme convert glucose into alcohol

Which of the following is more paramagnetic

For the reaction $A \to B$, the rate increases by a factor of $2.25 $ when the concentration of $A$ is increased by $ 1.5$. What is the order of the reaction