A mixture upon adding conc. H 2 SO 4 gives deep red fumes. It may contain the anions pair…
Chemistry · JEE Main · NTA Exams — Principles Related To Practical Chemistry
A mixture upon adding conc. H2SO4 gives deep red fumes. It may contain the anions pair :
- Cr2O72- and Cl–
- Br – and Cr2O72-
- NO3– and Cl–
- CrO42– and NO32–
Answer
(A) Cr 2 O 7 2- and Cl –
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