Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A mixture upon adding conc. 
gives deep red fumes. Mixture may contain the anions pair:
A
and 
B
B 
and 
and
C
and 
D
and 
Text Solution
Verified by ExpertsThe correct answer is:
A
and 
mixture upon adding concentrated sulphuric acid gives deep red fumes. The reaction is as follows,
Then, the mixture is added conc. 
gives deep red fumes.
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