A solid compound X on heating gives CO_2 gas and a residue. The residue mixed with water forms Y. On passing an excess of CO_2 through Y in water, a…

Question

A solid compound X on heating gives CO_2 gas and a residue. The residue mixed with water forms Y. On passing an excess of CO_2 through Y in water, a clear solution Z is obtained. On boiling Z, compound X is reformed. The compound X is

MARKS Content Team · Accepted Answer

Correct answer: (B) CaCO_3. The given compound X must be CaCO_3 . It can be explained by following reaction CaCO_3→ΔCaO+CO_2↑ CaO+H_2O→CaOH_2Y CaOH_2+2CO_2+H_2O→CaHCO_32Z CaHCO_32→ΔCaCO_3X+CO_2↑+H_2O

A solid compound X on heating gives $C O_{2}$ gas and a residue. The residue mixed with water forms Y. On passing an excess of $C O_{2}$ through Y in water, a clear solution Z is obtained. On boiling Z, compound X is reformed. The compound X is

Solution

More s Block Elements Questions

A solid compound X on heating gives CO2 gas and a residue. The residue mixed with water forms Y. On passing an excess of CO2 through Y in water, a clear solution Z is obtained. On boiling Z, compound X is reformed. The compound X is

Solution

More s Block Elements Questions

A solid compound X on heating gives $C O_{2}$ gas and a residue. The residue mixed with water forms Y. On passing an excess of $C O_{2}$ through Y in water, a clear solution Z is obtained. On boiling Z, compound X is reformed. The compound X is