JEE Main Chemistry question

Boric acid is used in carom boards for smooth gliding of pawns because [Kerala CEE 2006]

(A) 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)H-bonding in gives it a layered structureCorrect

Answer: (D)

Solution

Boric acid molecules are linked into planar sheets by hydrogen bonds between units, and these sheets are held together only by weak van der Waals forces, allowing them to slip over one another — giving the powder its lubricating,

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Question ID VK-138274