PDF chapter test TRY NOW

Identify the compound X on the basis of the reactions given below. Also, write the name and chemical formulae of A, B and C.
 
10.png
 
'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.