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Identify the compound X on the basis of the reactions given below. Also, write the name and chemical formulae of A, B and C.
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'X' must be a compound that reacts with acids to form water. It must be a that reacts with to produce salt and water. This also reacts with zinc metal, releasing hydrogen gas as a byproduct. So it has to be .
'X' with zinc reacts to form and hydrogen gas.
'X' with hydrochloric acid reacts to form and water.
'X' with acetic acid reacts to form and water.