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COMEDK2015Chemistryp Block Elements (Group 15, 16, 17 & 18)

Which of the following reactions does not produce PH ₃ ?

Options

  1. AWhite phosphorus with water
  2. BWhite phosphorus with conc. NaOH
  3. CMetal phosphide with dil. HCl
  4. DMetal phosphides with water

Correct answer

A. White phosphorus with water

Step-by-step solution

White phosphorus ( P ₄ ) with water do not produce PH ₃ , while with NaOH , Ca ₃ P ₂+ HCl and ( Ca ₃ P ₂+ H ₂ O ) it gives PH ₃ as follows : aligned P ₄+3 NaOH +3 H ₂ O & 3 NaH ₂ PO ₂+ PH ₃ Ca ₃ P ₂+6 HCl & 3 CaCl ₂+2 PH ₃ Ca ₃ P ₂+6 H ₂ O & 3 Ca ( OH )₂+2 PH ₃ aligned

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