Chemical A is used for water softening to remove temporary hardness. A reacts with sodium carbonate to generate caustic soda. When carbondioxide is bubbled through A, it turns cloudy. What is the chemical formula of A?

Chemical A is used for water softening to remove temporary hardness. A

1.	Chemical A is used for water softening to remove temporary hardness. A reacts with sodium carbonate to generate caustic soda. When carbondioxide is bubbled through A, it turns cloudy. What is the chemical formula of A?
Answer» <html><body><p>`CaCO_(3)`<br/>CaO<br/>`Ca(OH)_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)`<br/>`Ca(HCO_(3))_(2)`</p>Solution :Slaked lime Is usedto remove tamporary hardness of water. It <a href="https://interviewquestions.tuteehub.com/tag/converts-933341" style="font-weight:bold;" target="_blank" title="Click to know more about CONVERTS">CONVERTS</a> <a href="https://interviewquestions.tuteehub.com/tag/soluble-3046305" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUBLE">SOLUBLE</a> <a href="https://interviewquestions.tuteehub.com/tag/bicarbonates-896608" style="font-weight:bold;" target="_blank" title="Click to know more about BICARBONATES">BICARBONATES</a> of Mg and Ca into <a href="https://interviewquestions.tuteehub.com/tag/insoluble-1045950" style="font-weight:bold;" target="_blank" title="Click to know more about INSOLUBLE">INSOLUBLE</a> carbonates of Mg and Ca.</body></html>