Question

(a) Write the chemical name and formula of
marble.
(b) It has been found that marbles of Taj are
getting corroded due to development of
industrial areas around it. Explain this
fact giving a chemical equation.
(c) (i) What happens when CO2 is passed
through lime water?
(ii) What happens when CO2 is passed in
excess through lime?




(a) Write the chemical name and formula of
marble.
(b) It has been found that marbles of Taj are
getting corroded due to development of
industrial areas around it. Explain this
fact giving a chemical equation.
(c) (i) What happens when CO2 is passed
through lime water?
(ii) What happens when CO2 is passed in
excess through lime?​

Answer 1

Answer:

The chemical formula for marble is CaCO3. This chemical compound is known as calcium carbonate. The rock limestone also has the same chemical composition, but a different structure to its crystals.

Answer 2

Explanation:

(a)-marble-

*chemical name:-calcium carbonate

*formula:-CaCO3

(b)hence due to sulphuric acid present in acid rain

CaCO3+H2SO4–---->CaSO4+H2O+CO2

(c)Ca(OH)2+CO2----->CaCO3+H2O

(d)CaCO3+H2O+CO2----->Ca(HCO3)2

(calcium bicarbonate)