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STD 12 - p -Block elements - ll — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - p -Block elements - ll4 Marks
MCQ
Bones glow in the dark because
  • A
    They contain shining material
  • B
    They contain red phosphorus
  • ✓
    White phosphorus undergoes slow combustion in contact with air
  • D
    White phosphorus changes into red form
✓

Answer

Correct option: C.
White phosphorus undergoes slow combustion in contact with air
c
Bones are made of calcium and phosphorous. white phosphorous is an element which reacts with atmospheric oxygen and forms fumes like substance and glows in dark. this phenomenon is called as phosphorescence.

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