Question

Gas evolved when dil hcl reacts with sodium sulphite

Answer 1

hi mate here is ur answer

na2so3 + hcl = nacl + so2 + h2o

the gas evolved when sodium sulphite reacts with hcl is sulphur dioxide (so2)

Answer 2

Answer:

Na 2SO3+ 2HCL _ Na2So3+ H2O + SO2

Explanation:

on reaction of sodium sulphite with HCL , a colourless gas with suffocating odour sulphur dioxide is evolved . Now what is the test of So2?

It turns acidified potassium dichromate (k2Cr2O7) soln. From Orange to clear green.

Note: here the word ' clear ' is very important.