Question

a metallic compound A reacts with dilute sulphuric acid to produce a gas with extinguisher burning candle identify the compound A and the gas produced write a balanced chemical equation for the reaction of the compound formed in the reaction is sodium sulphate

Answer 1

Na2CO3+H2SO4----->Na2SO4+H2O+CO2

so the compound A is sodium carbonate
and the gas released is carbon dioxide

Answer 2

hope it will help you