Download App

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

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
MCQ
Which of the following becomes paramagnetic on heating?
  • A
    MnO
  • B
    Fe3​O4​
  • C
    ZnFe2​O4​
  • D
    B and C both
✓

Answer

  1. B and C both

Explanation:

Ferrimagnetic change their nature on heating and become paramagnetic

eg. Fe3​O4​,ZnFe2​O4​, MgFe2​O4​

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

Gem dihalide on hydrolysis gives:
→
The product formed in the following chemical reaction is :
→
Highest value of $pK_b$ will be of :
→
Reaction of $x g$ of $Sn$ with $HCl$ quantitatively produced a salt. Entire amount of the salt reacted with $y g$ of nitrobenzene in the presence of required amount of $HCl$ to produce $1.29 g$ of an organic salt (quantitatively).

($1$) The value of $x$ is. . . . . 

($2$) The value of $y$ is. . . . . 

→
The properties of a compound are:
→
The pair in which both species have same magnetic moment (spin only value) is
→
Which of the following has been arranged in order of decreasing dipole moment ?
→
Which one doesn't liberate $N{H_3}$ when undergoes hydrolysis
→
$p_A$ and $p_B$ are the vapour pressure of pure liquid components, $A$ and $B,$ respectively of an ideal binary solution. If $x_A$ represents the mole fraction of component $A,$ the total pressure of the solution will be
→
On heating $KMnO_4$, one among the following isnot formed
→