1
AIIMS 2019
MCQ (Single Correct Answer)
+1
-0.33

Which of the following can react with $$\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$$ ?

A
$$\mathrm{SO}_3^{-2}$$
B
$$\mathrm{CO}_3^{-2}$$
C
$$\mathrm{SO}_4^{-2}$$
D
$$\mathrm{NO}_3^{-}$$
AIIMS Subjects
EXAM MAP