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in Chemistry by (57.6k points)

A mixture upon adding conc.H2SO4 gives deep red fumes. It may contain the anions pair : 

(A) Cr2O72 and Cl – 

(B) Br and Cl – 

(C) NO3 and Cl – 

(D) CrO42– and NO32-

1 Answer

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Best answer

(A) Cr2O72– and Cl 

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