Chemistry

Problem

Experimentally it was found that a metal oxide has formula

\text{M}_{0.98}\text{O}

. Metal M, is present as

\text{M}^{2+}

and

\text{M}^{3+}

in its oxide. Fraction of the metal which exists as

\text{M}^{3+}

would be : a. 6.05% b. 5.08% c. 7.01% d. 4.08%