Question

Boric acid is used in carom boads for smooth gliding of pawns because

• A. $H_{3}B{O}_3$ molecules are loosely chemically bonded and hence soft
• B. its low density makes it fluffy
• C. it can be powdered to a very small grain size
• D. it is chemically inert with the plywood
• E. H-bonding in $H_{3}B{O}_3$ GIVES IT A LAYERED STRUCTURE.

Answer 1

The correct option is A $H_{3}B{O}_3$ molecules are loosely chemically bonded and hence soft

Boric acid is a solid lubricant and is used to reduce friction. It is used as a lubricant to make motion smooter. In carrom boards, boric acid is used for smooth gliding of porous because $H_{3}B{O}_3$ molecules are loosely chemically bounded and hence soft and thus reduce friction.