JEE Main 2026 · Session 2 · Shift 1 · Chemistry
Question 61
Which of the following sets includes all the species that will change the orange colour of K₂Cr₂O₇ in acidic medium?
- A. Fe²⁺, Sn²⁺, I⁻, S²⁻Correct answer
- B. S²⁻, Fe³⁺, I⁻, C₂O₄²⁻
- C. Fe²⁺, NO₂⁻, SO₂, Sn⁴⁺
- D. Fe³⁺, SO₄²⁻, S²⁻, Sn⁴⁺
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Official source
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Question paper, page 24.