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Q.

Statement 1 : H3BO3 is monobasic Lewis acid but salt Na3BO3   exists.Statement 2 : H3BO3 reacts with NaOH to give Na3BO3.

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a

Both Statement 1 and Statement 2 are true

b

Statement 1 is true and Statement 2 is false

c

Statement 1 is false and Statement 2 is true.

d

Both Statement 1 and Statement 2 are false.

answer is B.

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Detailed Solution

(1) H3BO3 in it self does not  contain any replaceable hydrogen atom  But on interaction with water a hydrogen ion is liberated by accepting OH- ionHence it is a monobasic acid Due to the presence of empty orbital on Boron atom , It  readily accepts the electron pair and acts as a Lewis acid(II) BOH3 +  NaOH  →  Na BOH4-
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