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P Block Elements question

2003 · Q106
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P Block Elements question

2003 · Q106

NEETChemistryP Block ElementsMCQ+4 / −1
Which one of the following compounds is not a protonic acid?
  1. A
    B(OH)3
  2. B
    PO(OH)3
  3. C
    SO(OH)2
  4. D
    SO2(OH)2
View written solutionFree

Correct answer: A

B(OH)3 does not provide H+ ions in water instead it accepts OH– ion and hence it is Lewis acid.

B(OH)3 + H2O ⇌ [B(OH)4]- + H+

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