General — Easy JEE chemistry MCQ
The green colour produced in the borax bead test of a chromium(III) salt is due to
- A. $\mathrm{Cr}\left(\mathrm{BO}_{2}\right)_{3}$
- B. $\mathrm{Cr}_{2}\left(\mathrm{~B}_{4} \mathrm{O}_{7}\right)_{3}$
- C. $\mathrm{Cr}_{2} \mathrm{O}_{3}$
- D. $\mathrm{CrB}$
Solution
The correct option is **C**.