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CGP EDU Academic Team
Published on: August 13, 2026
K 4 [Fe(CN) 6 ] can be used to detect one or more out of Fe 2+ , Fe 3+ , Zn 2+ , Cu 2+ , Ag + , Ca 2+ :
Text Solution
Verified by ExpertsThe correct answer is:
D
Fe 2+ + [Fe(CN) 6 ] 4– → white precipitate; Fe 3+ + [Fe(CN) 6 ] 4– → prussian blue precipitate.
Zn 2+ + [Fe(CN) 6 ] 4– → Bluish white/white precipitate ; Cu 2+ + [Fe(CN) 6 ] 4– → chocolate brown precipitate
Ag + + [Fe(CN) 6 ] 4– → white precipitate ; Ca 2+ + K 4 [Fe(CN) 6 ] 4– → white precipitate.
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