Boric acid is used to carom boards for smoot gliding of pawns because :

Options

A. `H_(3)BO_(3)` molecules are loosely chemically bonded and hence soft
B. its slow density makes it fluffy
C. it can be powered to a very small grain size
D. H-bonding in `H_(3)BO_(3)` gives it a layered structure

Answer

D

Explanation

Boric acid is used in carom boards for smooth gliding of pawns because H-bonding in `H_(3)BO_(3)` gives it a layered structure.