MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistryp-Block (group 13 and 14)Boron and Its Compounds

Boric acid is used in carrom boards for smooth gliding of pawns because:

A.H₃BO₃ molecules are loosely chemically bonded and✓ Correct

B.its low density makes it fluffy

C.it is chemically inert with the plywood

D.H-bonding in H₃BO₃ gives it a layered structure

Explanation

Boric acid acts as a solid lubricant. It is used to reduce friction on the surface of carrom board. It makes the motion smoother. 3 3 H BO Boric Acid molecules are loosely chemically bonded and hence it is soft which helps to reduce friction.

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