Question

A water soluble compound X of sodium on reacting with dil. H2SO4
released a colourless and

odourless gas accompanied by brisk effervescence. When the gas was passed through water, the
solution obtained turned blue litmus solution red. On bubbling the gas through lime water, it initially
became milky and the milkiness disappeared when the gas was passed in excess.

Identify the
substance X and write chemical equations for the reactions involved?​

Answer 1

Answer:

X is Na₂CO₃

Explanation:

Na₂CO₃+ dil. H₂SO₄ => Na₂SO₄ +H₂CO₃ (it is unstable and break into H₂O and CO₂ )

CO₂ +H₂O  =>H₂CO₃ (acid)

Ca(OH)₂ + CO₂ => CaCO₃ (milky color) + H₂O

hen excess CO₂ passed milky color dissolved

Answer 2

Answer:

water soluble compound X of sodium on reacting with dil. H2SO4

released a colourless and

odourless gas accompanied by brisk effervescence. When the gas was passed through water, the

solution obtained turned blue litmus solution red. On bubbling the gas through lime water, it initially

became milky and the milkiness disappeared when the gas was passed in excess.

Identify the

substance X and write chemical equations for the reactions involved?