Question

When SO2 gas in excess is passed into an aqueous solution of Na2CO3, product formed is :

• A. NaHSO4
• B. Na2 SO4
• C. NaHSO3
• D. All

Answer 1

Answer: (C)

NaHSO3

Answer 2

Na2CO3 + SO2 (excess) + H2O$\longrightarrow$NaHSO3 + CO2