A pungent smelling gas X after being dried by concentrated `H_2SO_4` was dissolved in water to give strongly acidic solution. The gas also gives dense

A pungent smelling gas X after being dried by concentrated `H_2SO_4` was dissolved in water to give strongly acidic solution. The gas also gives dense
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A pungent smelling gas X after being dried by concentrated `H_2SO_4` was dissolved in water ... `CO_2` from the solution of sodium hydrogencarbonates.
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