Q. Which of the following can react with $K_{2} C r_{2} 0_{7}$ ?

1775 216 AIIMSAIIMS 2019 Report Error

A

$S 0_{3}^{2 -}$

B

$C 0_{3}^{2 -}$

C

$S 0_{4}^{2 -}$

D

$N 0_{3}^{-}$

Solution:

Correct answer is (a) $S 0_{3}^{2 -}$