AP EAMCET · Chemistry · s Block Elements
A chemical \(A\) is used for the preparation of washing soda to recover ammonia. When \(\mathrm{CO}_2\) is bubbled through an aqueous solution of \(A\), the solution tums milky. It is used in white washing due to disinfectant nature. What is the chemical formula of \(A\) ?
- A \(\mathrm{Ca}\left(\mathrm{HCO}_3\right)_2\)
- B \(\mathrm{CaO}\)
- C \(\mathrm{Ca}(\mathrm{OH})_2\)
- D \(\mathrm{CaCO}_3\)
Answer & Solution
Correct Answer
(C) \(\mathrm{Ca}(\mathrm{OH})_2\)
Step-by-step Solution
Detailed explanation
\(\mathrm{Ca}(\mathrm{OH})_2\) is used in the preparation of washing soda \(\left(\mathrm{Na}_2 \mathrm{CO}_3 \cdot 10 \mathrm{H}_2 \mathrm{O}\right.\) ) to recover ammonia \(\left(\mathrm{NH}_3\right)\).…
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