Gas ' \(X\) ' is obtained on heating \(\mathrm{KClO}_3\) with catalyst \(\mathrm{MnO}_2\). This gas (in…

Gas ' \(X\) ' is obtained on heating \(\mathrm{KClO}_3\) with catalyst \(\mathrm{MnO}_2\). This gas (in excess) on reaction with white phosphorus forms an acidic oxide ' \(Y\) '. ' \(Y\) ' on dissolving in water forms a compound ' \(Z\) '. Identify \(X, Y\) and \(Z\).
  1. \(\mathrm{O}_2, \mathrm{P}_2 \mathrm{O}_5, \mathrm{H}_3 \mathrm{PO}_4\)
  2. \(\mathrm{O}_3, \mathrm{P}_2 \mathrm{O}_5, \mathrm{H}_3 \mathrm{PO}_4\)
  3. \(\mathrm{O}_2, \mathrm{P}_2 \mathrm{O}_3, \mathrm{H}_3 \mathrm{PO}_3\)
  4. \(\mathrm{O}_2, \mathrm{P}_2 \mathrm{O}_5, \mathrm{H}_3 \mathrm{PO}_3\)

Solution


\(\begin{aligned} \mathrm{P}_4+5 \mathrm{O}_2 & \longrightarrow 2 \mathrm{P}_2 \mathrm{O}_5 \\ \mathrm{P}_2 \mathrm{O}_5+3 \mathrm{H}_2 \mathrm{O} & \longrightarrow 2 \mathrm{H}_3 \mathrm{PO}_4 \end{aligned}\)

Asked in: AP EAMCET 2020 (18 Sep Shift 1)

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