Q.
Boric acid (H3BO3) has
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a
Trigonal structure
b
Tetrahedral structure
c
Layer structure, in which BO3 units are linked by O2
d
Layer structure, in which planar BO3 units are linked by Hydrogen Bonding
answer is D.
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Detailed Solution
In boric acid planar BO3-3 units are joined by hydrogen bonds to give a layer like structure.The adjacent layers in the crystal of boric acid are held together by weak Vander waal's forces of attractions.Because of weak forces of attraction,one layer can slide over the other.This slippery nature makes boric acid become soft and soapy to touch.
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