When potassium ferrocyanide crystals are heated with concentrated sulp – McqOptions

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1.	When potassium ferrocyanide crystals are heated with concentrated sulphuric acid, the gas evolved is [CBSE PMT PMT 1999; KCET 2000]
A.	Ammonia
B.	Sulphur dioxide
C.	Carbon dioxide
D.	Carbon monoxide
Answer» E.

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