1.

As its melting point, ice is lighter than water because:

Answer»

`H_(2)O` molecules are more closely packed in the SOLID state
ice crystals have follow hexagonal arrangement of `H_(2)O` molecules
on melting of ice `H_(2)O` molecules shrink in size
ice forms mostly heavy water on first melting.

Solution :(B) Ice crystals have `H_(2)O` molecules ARRANGED hexxagonally and linked by hydrogen bonds.


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