Chemistry · PYQ NEET UG 2016(1)

Which one of the following statements is CORRECT when \( SO_2 \) is passed through acidified \( K_2Cr_2O_7 \) solution?

1. A
   Green \( Cr_2(SO_4)_3 \) is formed.
2. B
   \( SO_2 \) is reduced.
3. C
   The solution turns blue.
4. D
   The solution is decolourized.