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AP EAMCET202120 Aug 2021Evening ShiftChemistryp Block Elements (Group 13 & 14)Actual

H 3 BO 3 or B ( OH ) 3 is considered as an acid because its molecule

Options

  1. ACombines with proton from water molecule
  2. BAccepts OH - from water, releasing a proton
  3. CContains replaceable H + ion
  4. DCan donate proton easily

Correct answer

B. Accepts OH - from water, releasing a proton

Step-by-step solution

H 3 BO 3 when reacts with the water then it takes the hydroxide ion from the water and formed the H + ions. It decreases the concentration of hydroxide ions. So, due to this it acts as an acidic in nature. H 3 BO 3 + H 2 O → B OH 4 -   +   H + Hence, H 3 BO 3 or B ( OH ) 3 is considered as an acid because its molecule accepts OH - from water, releasing a proton.

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