Q. The oxidation state of Cr in chromium trioxide is
A) +3
B) +4
C) +5
D) +6
Explanation
(a)
Oxidation state of Cr in ${Cr}_{2}O_{3}\ is\$
${Cr}_{2}O_{3},$
$2x + ( - 2)3 = 0$
$2x - 6 = 0$
$2x =$ 6
$x = + 3$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.