give your significant Observation for the action of dilute sulphuric acid on zinc carbonate
Answers
Explanation:
In general when metal carbonates reacts with acids, usually they produce a salt, water and carbondioxide gas.
When zinc carbonate reacts with dilute sulphuric acids, this results in the production of zinc sulphate, water and carbondioxide.
Chemical reaction:
Zinc Carbonate + Sulphuric Acids === Zinc Sulphate + Carbondioxide + Water
ZnCO3 (s) + H2SO4 (aq) == ZnSO4 (aq) + H2O (l)+CO2 (g)
Observation when zinc carbonate reacts with dilute sulphuric acid is we get zinc sulphate and gas carbon dioxide is evolved along with water as product.
Dilute sulphuric acid formula of H2SO4 and formula for zinc carbornate is ZnCO3 as both zinc znd carbonate ion has valency of +2 and -2 respectively so formula is ZnCO3.
During the reaction carbonate is replaced by sulphate ions from the zinc carbonate forming zinc sulphate and carbonate is evolved as carbon dioxide gas which can be tested by lime water.
When CO2 gas evolved is passed to lime water that is CaO the lime water turns milky indicating that the evolved gas is carbon dioxide(CO2).
The reaction is:---
ZnCO3 + H2SO4(dilute)-------->ZnSO4 + CO2(g) +H2O