The metal ions that have the calculated spin-only magnetic moment value of 4.9 B.M. are: A. Cr²⁺ B. Fe²⁺ C. Fe³⁺ D. Co²⁺ E. Mn³⁺ Choose the correct answer from the options given below:

d- and f-Block Elements: JEE Main 2025 Chemistry question

JEE Main 2025 · 3 Apr, Morning shift · Q53

JEE Main 20253 Apr, Morning shiftChemistryMediumd- and f-Block Elements158× since 2002

The metal ions that have the calculated spin-only magnetic moment value of 4.9 B.M. are : A.

\mathrm{Cr^{2+}}

\mathrm{Fe^{2+}}

\mathrm{Fe^{3+}}

\mathrm{Co^{2+}}

\mathrm{Mn^{3+}}

Choose the correct answer from the options given below:

JEE Main 2025 d- and f-Block Elements Question with Solution (3 Apr Morning shift, Q53) | JEE Arc

JEE Main 2025 · 3 Apr, Morning shift · Q53

JEE Main 20253 Apr, Morning shiftChemistryMediumd- and f-Block Elements158× since 2002

The metal ions that have the calculated spin-only magnetic moment value of 4.9 B.M. are : A.

\mathrm{Cr^{2+}}

\mathrm{Fe^{2+}}

\mathrm{Fe^{3+}}

\mathrm{Co^{2+}}

\mathrm{Mn^{3+}}

Choose the correct answer from the options given below: