Q. Which of the following is an acidic oxide?
A) ${Mn}_{2}O_{3}$
B) ${MnO}_{2}$
C) ${Mn}_{2}O_{7}$
D) $MnO$
Explanation
(c)
${Mn}_{2}O_{7}$ is an acidic oxide of manganese. It dissolve in water to give violet coloured solution of permanganic acid.
${Mn}_{2}O_{7} + H_{2}O\ \longrightarrow 2{HMnO}_{4}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.