Verified Solution • 2025–26 Session moderate

QAIPMT-2004-Ch-2582: NEET 2004 Chemistry - Class 11 AIPMT-2004-Ch-2582 Solution: A solid compound X on heating gives \(CO_2\) gas and a residue. …

A solid compound X on heating gives CO2CO_2 gas and a residue. The residue mixed with water forms Y. On passing an excess of CO2CO_2 through Y in water, a clear solution Z is obtained. On boiling Z, compound X is reformed. The compound X is

Multiple Choice Options

  • A Ca(HCO3)2Ca(HCO_3)_2
  • B CaCO3CaCO_3
  • C Na2CO3Na_2CO_3
  • D K2CO3K_2CO_3

Step-by-Step Verified Solution

The given compound X must be CaCO 3 .

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