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JEE Main20208 Jan 2020Evening ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

White phosphorus on reaction with concentrated N a O H solution in an inert atmosphere of C O 2 gives phosphine and compound X . X on acidification with H C l gives compound Y . The basicity of compound Y is:

Options

  1. A2
  2. B1
  3. C4
  4. D3

Correct answer

B. 1

Step-by-step solution

P 4 + 3 NaOH + 3 H 2 O → 3 NaH 2 PO 2 x + PH 3 NaH 2 PO 2 + HCl → NaCl + H 3 PO 2 Y

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