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

Match the following: The correct answer is

Options

  1. A(a)
  2. B(b)
  3. C(c)
  4. D(d)

Correct answer

D. (d)

Step-by-step solution

(A-II) When white P₄ reacts with hydroxide ion in aqueous medium then hypophosphorus acid ( H ₃ PO ₂ ) is obtained. P ₄+4 OH ⁻ 4 H ₂ O + H ⁺ 4 H ₃ PO ₂ It is monobasic acid. (B-III) When phosphorus acid ( H ₃ PO ₃ ) reacts with PCI ₃ in aqueous solution then pyrophosphorus acid is formed. H ₃ PO ₃+ PCI ₃+2 H ₂ O H ₄ P ₂ O ₅+3 HCI (C-IV) P ₂ O ₅ (phosphorus pentoxide) in aqueous medium, gives phosphoric acid. P ₂ O ₅+3 H ₂ O Phosphoric acid 2 H ₃ PO ₄ Phosphoric acid is weak acid. (D-V) Pyrophosphoric acid is obtain

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