COMEDK2015Chemistryp Block Elements (Group 15, 16, 17 & 18)
Which of the following reactions does not produce PH ₃ ?
Options
- AWhite phosphorus with water
- BWhite phosphorus with conc. NaOH
- CMetal phosphide with dil. HCl
- 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