Download App

The d & f Block Elements — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
MCQ
Transition metals are often para magnetic owing to ____________.
  • A
    High melting point and boiling point.
  • B
    The presence of vacant orbitals.
  • C
    The presence of unpaired electrons.
  • D
    Malleability and ductility.
✓

Answer

  1. The presence of unpaired electrons.

Explanation:

Any metal or ion having unpaired electron will show paramagnetism.

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 [1M]" from The d & f Block Elements→The d & f Block Elements — all question types→Chemistry STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

Which of following ion has the maximum theoretical magnetic moment?
→
A concentrated solution contains high amount of ________:
→
The cathode in the central compartment of Castner Kellner cell used for the manufacture of NaOH is:
→
Which enzyme is used for the fermentation of sugar to glucose and fructose :
→
The adsorption of hydrogen by platinum black is called:
→
During dehydration of alcohols to alkenes by heating with conc. H2​SO4​, the initiation step is:
→
Which of the following shows maximum number of isomers?
→
Which of the following is amphoteric oxide?
Mn2O7, CrO3, Cr2O3, CrO, V2O5, V2O4
→
The unit of rate constant of first order reaction is :
→
The correct reactivity order of alcohols towards H−X will be:

→