Mht CetD And F Block ElementsMHT CET 2024 15th May Morning ShiftMCQ+1 / -02024Which among the following is ferromagnetic substance?A$\mathrm{NaCl}$B$\mathrm{H}_2 \mathrm{O}$C$\mathrm{O}_2$D$\mathrm{CrO}_2$Check AnswerClear SelectionReveal AnswerShow Explanation