In ice, the number of hydrogen bonds per water molecule is A. 1 B. 2 C. 4 D. 8

The correct answer is B. 2.

A hydrogen bond is an attractive force between a hydrogen atom that is covalently bonded to a more electronegative atom and another atom with a lone pair of electrons. In ice, each water molecule is surrounded by four other water molecules, with each oxygen atom forming hydrogen bonds to two hydrogen atoms from other water molecules. This results in a tetrahedral arrangement of water molecules in ice.

Option A is incorrect because each water molecule only forms two hydrogen bonds. Option C is incorrect because each water molecule only has four hydrogen atoms available to form hydrogen