Question

The density of water is less in its solid state because

• A. in solid state (ice), water molecules are arranged in highly ordered open cage like structure
• B. more extensive hydrogen bonding is present in solid state ice
• C. the water molecules are closest in solid state of water
• D. water is a rigid crystalline, closely packed structure in its solid state

Answer 1

Answer: (A)

The water has maximum density at 4 deg C. When liquid water is converted to ice, an open cage three dimensional structure is formed. Almost half the space is unoccupied. In liquid state, molecules are more closely packed.