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AP EAMCET202018 Sep 2020Morning ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Gas ' (X ) ' is obtained on heating ( KClO ₃ ) with catalyst ( 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 ).

Options

  1. A( O ₂, P ₂ O ₅, H ₃ PO ₄ )
  2. B( O ₃, P ₂ O ₅, H ₃ PO ₄ )
  3. C( O ₂, P ₂ O ₃, H ₃ PO ₃ )
  4. D( O ₂, P ₂ O ₅, H ₃ PO ₃ )

Correct answer

A. ( O ₂, P ₂ O ₅, H ₃ PO ₄ )

Step-by-step solution

( aligned P ₄+5 O ₂ & 2 P ₂ O ₅ P ₂ O ₅+3 H ₂ O & 2 H ₃ PO ₄ aligned )

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