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....

A solid compound 'X' on heating gives CO_(2)gas and a residue. The res

1.	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....
Answer» <html><body><p>`Na_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)CO_(3)` <br/>`K_(2)CO_(3)` <br/>`Ca(HCO_(3))_(2)` <br/>`CaCO_(3)` </p>Solution :The given compound X must be `CaCO_(3)`. It can be explained by <a href="https://interviewquestions.tuteehub.com/tag/followingreactions-2650638" style="font-weight:bold;" target="_blank" title="Click to know more about FOLLOWINGREACTIONS">FOLLOWINGREACTIONS</a>, <br/> `underset((X))(CaCO_(3)) overset(Delta)to underset(("Residue"))(CaO+CO_(2)<a href="https://interviewquestions.tuteehub.com/tag/uarr-3241817" style="font-weight:bold;" target="_blank" title="Click to know more about UARR">UARR</a>),CaO+H_(2)underset((Y))to Ca(<a href="https://interviewquestions.tuteehub.com/tag/oh-585115" style="font-weight:bold;" target="_blank" title="Click to know more about OH">OH</a>)_(2)` <br/> `Ca(OH)_(2)+CO_(2)+H_(2)O to underset((Z))(Ca(HCO_(3)))` <br/>`Ca(HCO_(3))_(2) overset(Delta)to underset((X))(CaCO_(3))+CO_(2)uarr+H_(2)O`</body></html>