Analytical ChemistryHard
Question
A solution of a salt in concentrated sulphuric acid H2SO4 acid produced a deep blue colour with starch iodide solution. The salt may be
Options
A.chloride
B.carbonate
C.acetate
D.bromide
Solution
Br- + H2SO4 → HBr + HSO4- ; HBr + H2SO4 → Br2 + SO2 + 2H2O
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