Question

Which of the following becomes paramagnetic on heating at 850 K?

• A. $MnO$
• B. $Fe_3O_4$
• C. $ZnFe_2O_4$
• D. (B) & (C) both

Answer 1

Answer: (D)

(B) & (C) both

Answer 2

The correct option is (D): (B) & (C) both.