Multiple choice general knowledge science & technology

Which is the liquid which expands while freezing?

  1. Liquid Mercury

  2. Water

  3. Liquid nitrogen

  4. Mineral oil
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Water is one of the few liquids that expands when it freezes due to hydrogen bonding forming an open hexagonal crystal structure with more volume than liquid water. This unusual property explains why ice floats and why pipes can burst in winter. Mercury, liquid nitrogen, and mineral oil all contract upon freezing like most liquids.

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