Using dil. HCl, which of the following radical cannot be confirmed
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a
S2−
b
S2O32−
c
CO32−
d
NO2Θ
answer is C.
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Detailed Solution
S2−+2HCl⟶Δ H2S↓+2Cl⊖ Rotten egg smell (Specific smell)S2O32−+2HCl⟶ΔSO2↑+2Cl⊖+S↓+H2O Suffocating Yellow turbidity or smell of white turbidity burning sulphurCO32−+2HCl⟶Δ or cold CO2↑+H2O+2Cl⊖ Odourless gas evolves with brisk effervescences HCO3⊖ also behave similarly