When excess of carbon dioxide is passed through lime water, the milkiness first formed disappears due to

Question

When excess of carbon dioxide is passed in lime water, calcium carbonate is converted to calcium bicarbonate which is soluble, hence the milkiness due to calcium carbonate disappears.

C a (O H)_{2} + C O_{2} \to Milkiness C a C O_{3} ↓ + H_{2} O

C a C O_{3} + H_{2} O + C O_{2} \to soluble C a (H C O_{3})_{2}

Tardigrade Admin · Accepted Answer

When excess of carbon dioxide is passed in lime water, calcium carbonate is converted to calcium bicarbonate which is soluble, hence the milkiness due to calcium carbonate disappears.

C a (O H)_{2} + C O_{2} \to Milkiness C a C O_{3} ↓ + H_{2} O

C a C O_{3} + H_{2} O + C O_{2} \to soluble C a (H C O_{3})_{2}

Q. When excess of carbon dioxide is passed through lime water, the milkiness first formed disappears due to

the reversible reaction taking place

formation of water soluble calcium bicarbonate

huge amount of heat evolved during the reaction

formation of water soluble complex of calcium

Q. When excess of carbon dioxide is passed through lime water, the milkiness first formed disappears due to

the reversible reaction taking place

formation of water soluble calcium bicarbonate

huge amount of heat evolved during the reaction

formation of water soluble complex of calcium

When excess of carbon dioxide is passed in lime water, calcium carbonate is converted to calcium bicarbonate which is soluble, hence the milkiness due to calcium carbonate disappears. Ca(OH)2​+CO2​→ Milkiness CaCO3​​↓+H2​O CaCO3​+H2​O+CO2​→solubleCa(HCO3​)2​​