Easy reaction of acid with sulphite and bisulphites
Answers
Answer:
The reaction when hydrochloric acid reacts with sodium sulphite, it forms sodium chloride and sulphur dioxide which gives the smell of burning sulphur. ... Na2SO3 + 2HCl → 2NaCl + H2O + SO2. It is a colourless gas having the suffocating smell of burning sulphur.
Answer:
The reaction between dil. sulphuric acid and sodium sulphite occurs in two steps and is a double replacement reaction.
In the first step, sulphuric acid reacts with sodium sulphite to give sodium sulphate and sulphurous acid.
H
2
SO
4
+Na
2
SO
3
→Na
2
SO
4
+H
2
SO
3
In the second step, sulphurous acid, which is highly unstable decomposes spontaneously into sulphur dioxide and water.
H
2
SO
3
→SO
2
+H
2
O
Thus, the overall reaction is written as:
H
2
SO
4
+Na
2
SO
3
→Na
2
SO
4
+SO
2
+H
2
O
Explanation:
hope this helps...