Ionic EquilibriumHard
Question
Concentrated sulphuric acid is added followed by heating of each of the following test tubes labbelled (I) to (IV)
Which of the following statement is incorrect about these observation
Which of the following statement is incorrect about these observation
Options
A.Evolution of violet gas take place in (III) tube and black substance in (I) tube
B.Evolution of neutral and colourless gas take place in (II) tube and neutral gas burn with blue flame
C.Evolution of brown fumes take place in (IV) tube
D.Evolution of violet gas take place in (III) tube and violet gas gives green colour with starch paper
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