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A student adds a few drops of ethanoic acid to test tubes X, Y and Z containing aqueous solutions of sodium chloride, sodium hydroxide and sodium

carbonate, respectively. If he now brings a burning splinter near the mouth of the test tubes immediately after adding ethanoic acid in each one of them, in which of the test tube or test tubes the flame will be extinguished? (A) X and Y (B) Y and Z (C) X and Z (D) only Z


(D) Only Z
Since only Sodium Carbonate produces Carbon dioxide which will extinguish the flame :)
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