1.

Which gas is produced when common salt reacts with conc. H_2 SO_4 ?

Answer»

Solution :HCL gas is produced.
`NaCl + H_2SO_4 OVERSET(420 K) rarr NaHSO_4 + HCl`
`2NaCl + H_2SO_4 overset(823 K) rarr Na_2 SO_4 + 2HCL`


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