Chemistry

Problem

9 \times 10^{-3}

mole of

X^{n+}

are oxidised to

\text{XO}_3^-

6 \times 10^{-3}

mole of

\text{K}_2\text{Cr}_2\text{O}_7

. If atomic mass of

X

A

, then equivalent mass of

X^{n+}

will be: a.

A

\frac{A}{2}

\frac{A}{3}

\frac{A}{4}