Question:medium
Which of the following sets includes all the species that will change the orange colour of \(K_2Cr_2O_7\) in acidic medium?
Which of the following sets includes all the species that will change the orange colour of \(K_2Cr_2O_7\) in acidic medium?
Updated On: Apr 10, 2026
- \(Fe^{2+},\ Sn^{2+},\ I^-,\ S^{2-}\)
- \(S^{2-},\ Fe^{3+},\ I^-,\ C_2O_4^{2-}\)
- \(Fe^{2+},\ NO_2^-,\ SO_2,\ Sn^{4+}\)
- \(Fe^{3+},\ SO_4^{2-},\ S^{2-},\ Sn^{4+}\)
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The Correct Option is A
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