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Can someone explain Boric acid is an acid because its molecule

Boric acid is an acid because its molecule

  • Option 1)

    contains replaceable H+ ion

  • Option 2)

    gives up a proton

  • Option 3)

    accepts OH- from water releasing proton

  • Option 4)

    combines with proton from water molecule

 
Answers (1)
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As we discussed in the concept

Boric Acid as Lewis Acid -

Weak monobasic acid. Does not liberate hydrogen ion but accepts a hydroxyl ion.

- wherein

B\left ( OH \right )_{3}+HOH\rightarrow \left [ B\left ( OH \right )_{4} \right ]^{-}+H^{+}

 

 Boric acid is a lewis acid which accept OH-

B(OH)_{3}+H_{2}O\rightarrow \left [ B(OH)_{4} \right ]^{-}+H^{+}


Option 1)

contains replaceable H+ ion

This solution is incorrect 

Option 2)

gives up a proton

This solution is incorrect 

Option 3)

accepts OH- from water releasing proton

This solution is correct 

Option 4)

combines with proton from water molecule

This solution is incorrect 

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