Q. ${CrO}_{3}$ dissolves in aqueous NaOH to give
A) ${CrO}_{4}^{2 -}$
B) $Cr(OH)_{3}^{-}$
C) ${CrO}_{7}^{2 -}$
D) $Cr(OH)_{2}$
Explanation
(a)
${CrO}_{3}$ dissolves in aqueous NaOH to give sodium chromate.
${CrO}_{3} + 2NaOH\ \longrightarrow {Na}_{2}{CrO}_{4} + H_{2}O$
Sodium chromate
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.