Verified Solution • 2025–26 Session moderate

QJEEAdv08Ch91c9: JEE Advanced 2008 Chemistry - Class 12 JEEAdv08Ch91c9 Solution: White phosphorus on reaction with NaOH gives PH 3 as one of the …

White phosphorus on reaction with NaOH gives PH3 as one of the products. This is a:

Multiple Choice Options

  • A dimerisation reaction
  • B disproportionation reaction
  • C condensation reaction
  • D precipitation reaction

Step-by-Step Verified Solution

White phosphorus on reaction with NaOH gives PH3 as one of the products.

P4 + 3NaOH + 3H2O → 3NaH2PO2 + PH3

The oxidation state of P in P4, NaH2PO2 and PH3 is 0, +1 and −3 respectively. It is an example of disproportionation reaction.

Related Learning Resources & Exam Preparation

JEE Advanced PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring