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.A. If both assertion and reason are terue and the reason is the correct explanation of the assertion .B. If both assertion ans reason are true but reason is not the correct explanation of the assertion .C. If assertion is true but reason is false .D. If assertion is false but reason is true.

For the Daniell cell ` Zn| Zn^(2+) || Cu^(2+) | Cu` with The questions

1.	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.A. If both assertion and reason are terue and the reason is the correct explanation of the assertion .B. If both assertion ans reason are true but reason is not the correct explanation of the assertion .C. If assertion is true but reason is false .D. If assertion is false but reason is true.
Answer» Correct Answer - D `Fe_(3)O_(4)` is ferronagetic at room tempreature and becomes pramagnetic at `850 K` due to randomization of spin with temperature.

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