Density of ice is ______ compared to density of water.

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RRB ALP Electrician 22 Jan 2019 Official Paper (Shift 3)
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  1. less
  2. more
  3. negligible
  4. equal

Answer (Detailed Solution Below)

Option 1 : less
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Detailed Solution

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The correct answer is less.

Key Points

  • Liquids have a lower density than solids therefore ice is accepted to be heavier than water.
  • However, ice has low density than water because it has a cage-like structure.
  • In this structure, a lot of vacant spaces are left when water molecules are linked in ice.​​
  • Due to lower density ice floats on water.​

Additional Information 

  • The density of ice = 0.91 g/cm3.
  • The density of water is 1 g/cm3.
  • With 70% of our earth being ocean water and 65% of our bodies being made up of water, it is hard not to be aware of how important it is in our lives.
  • This simple fact is why scientists are constantly looking for water on other planets - the presence of water could indicate the presence of life.
  • There are three different forms of water, or H2O: solid (ice), liquid (water), and gas (steam).

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