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4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
When ice melts to form liquid water at $0\,^oC$, there is a contraction in volume.  This is due to 
  • A
    the molecules contracting in size
  • ✓
    a partial disruption of the hydrogen bonded network of ice on melting
  • C
    the absorption of heat during the melting process
  • D
    the dissolving of air into the water during the melting process
✓

Answer

Correct option: B.
a partial disruption of the hydrogen bonded network of ice on melting
b
Ice melts to form liquid water at $0^{\circ} C$, there contraction in volume is due to a partial disruption of the hydrogen bonded network of ice on melting.

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