A few drops of ethanoic acid were added to solid sodium carbonate. The possible results of thereactions are: [ ]a) A hissing sound was evolvedb) Brown fumes evolved.c) Brisk effervescence occurred. d) A pungent smelling gas evolved.

A few drops of ethanoic acid were added to solid sodium carbonate. The

1.	A few drops of ethanoic acid were added to solid sodium carbonate. The possible results of thereactions are: [ ]a) A hissing sound was evolvedb) Brown fumes evolved.c) Brisk effervescence occurred. d) A pungent smelling gas evolved.
Answer» Yes. The ACID used or sodium CARBONATE used should be ENOUGH to PRODUCE the sound which is due to the evolution of CARBONDIOXIDE. 2CH3COOH + Na2CO3 --> 2CH3COONa + H2O + CO2 Option A is correct

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A few drops of ethanoic acid were added to solid sodium carbonate. The possible results of thereactions are: [ ]a) A hissing sound was evolvedb) Brown fumes evolved.c) Brisk effervescence occurred. d) A pungent smelling gas evolved.

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