Q10 / 90 · JEE Main 2014 (09 Apr Online) · Chemistry

Which of the following is not formed when H2S reacts with acidic K2Cr2O7 solution ?

  • A
    K2SO4
  • B
    Cr2(SO4)3
  • C
    S
  • Correct answer
    D
    CrSO4

Solution

The Reaction is

K 2 Cr 2 O 7 + 4 H 2 SO 4 → K 2 SO 4 + Cr 2 SO 4 3 + 4 H 2 O + 3 O 3 O + 3 H 2 S → 3 H 2 O + 3 S
_______________________________________________________________________

K 2 Cr 2 O 7 + 4 H 2 SO 4 + 3 H 2 S → K 2 SO 4 + Cr 2 SO 4 3 + 7 H 2 O + 3 S
CrSO4 is not formed

Hence, the correct answer is option: 'D'.

Relevant Questions