`Fe_(3)O_(4)` is ferrimagnetic at room temperature but at 850K it becomes::

Fe_(3)O_(4) is ferrimagnetic at room temperature but at 850 K it becomes :

(A): Fe_(3)O_(4) is ferrimagnetic at room temperature but becomes paramagnetic at 850 K (R): The magnetic moments in Fe_(3)O_(4) ale aligned equally in parallel and antiparallel directions which on heating randomise

A : Fe_(3)O_(4) is ferrimagnetic at room temperature but becomes paramagnetic at 850 K. R : The magnetic moment in Fe_(3)O_(4) are aligned equally in parallel and antiparallel directions which on heating randomise.

A : Fe_(3)O_(4) is ferrimagnetic at room temperature but becomes paramagnetic at 850 K. R : The magnetic moment in Fe_(3)O_(4) are aligned equally in parallel and antiparallel directions which on heating randomise.

Fe_3O_4 is ferrimagnetic at room temperature but becomes paramagnetic at 850K. Explain.

Assertion : Fe_(3)O_(4) is paramagnetic at room temperature and becomes ferromagnetic at 850 K Reason : The randomization of spin takes place with temperature.

For the Daniell cell Zn| Zn^(2+) || Cu^(2+) | Cu with The questions consist of two statements each, printed as Assertion and Reason. While answering these questions you are required to choose any one of the following four responses : Fe_3O_4 is paramagnetic at room temperature and becomes ferromagnetic at 850 K . The randomization of spin takes place whith temperature.