TS EAMCET · Chemistry · Hydrogen
Unknown inorganic compound ' \(\mathrm{A}\) ' is used for water softening ' \(\mathrm{A}\) ' reacts with \(\mathrm{Na}_2 \mathrm{CO}_3\) to generate an alkaline compound 'B' whose \(\mathrm{pH}=14\). 'A' on reaction with \(\mathrm{CO}_2\) gives cloudy ppt. ' \(\mathrm{B}\) ' \(+\mathrm{CaO}\) reacts with unknown organic compound ' \(\mathrm{C}\) ' to give \(\mathrm{C}_6 \mathrm{H}_6\). \(\mathrm{A}, \mathrm{B}\) and \(\mathrm{C}\), respectively, are
- A \(\mathrm{Ca}(\mathrm{OH})_2, \mathrm{Na}_2 \mathrm{CO}_3, \mathrm{C}_6 \mathrm{H}_5 \mathrm{COOH}\)
- B \(\mathrm{Ca}(\mathrm{OH})_2, \mathrm{NaOH}, \mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{COOH}\)
- C \(\mathrm{Ca}(\mathrm{OH})_2, \mathrm{NaOH}, \mathrm{C}_6 \mathrm{H}_5 \mathrm{COOH}\)
- D \(\mathrm{Ca}, \mathrm{NaOH}, \mathrm{C}_6 \mathrm{H}_5 \mathrm{COOH}\)
Answer & Solution
Correct Answer
(C) \(\mathrm{Ca}(\mathrm{OH})_2, \mathrm{NaOH}, \mathrm{C}_6 \mathrm{H}_5 \mathrm{COOH}\)
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