WAEC - Chemistry (2000 - No. 36)
A colourless, odourless liquid T, gives effervescence with sodium trioxocarbonate (IV) and a white precipitate with silver trioxonitrate (V) solution T is most probably
sodium chloride solution
barium chloride solution
dilute trioxonitrate (V) acid
dilute hydrochloric acid
Explanation
Take an unknown substance and add a few drops of it to the silver nitrate solution. If the silver nitrate solution turns white due to the formation of silver chloride, the acid is hydrochloric acid. If the solution remains clear, the acid is nitric acid. T is Hydrochloric Acid(an odourless, colourless solution with a pungent smell)
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