MCQ
Bones glow in the dark because
- AThey contain shining material
- BThey contain red phosphorus
- ✓White phosphorus undergoes slow combustion in contact with air
- DWhite 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.
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.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which of the following reaction(s) can be used for the preparation of alkyl halides ?
→$(I)\,\,CH_3CH_2OH + HCl \xrightarrow{{Anh.\,\,ZnC{l_2}}}$
$(II)\,\,CH_3CH_2OH + HCl \rightarrow$
$(III)\,\,(CH_3)_3COH + HCl \rightarrow$
$(IV)\,\,(CH_3)_2CHOH + HCl \xrightarrow{{Anh.\,\,ZnC{l_2}}}$
Trunbull's blue is a compound
Which of the following will favour the reverse reaction in a chemical equilibrium
Which of the following has highest ionic radii
Correct order of stability of carbanion is
Product $(A)$ is
→Bad conductor of electricity is
The boiling points of noble gases are illustrative of the operation of forces of the type
Aldol condensation of acetaldehyde involves the formation of which of the following intermediate
At $298\, K$ the $emf$ of cell is ............ $\mathrm{V}$
→$\operatorname{P}t|{{H}_{{{2}_{\left( 2\,atm \right)}}}}|H_{\left( 0.02\,M \right)}^{\oplus }||H_{\left( 0.1\,M \right)}^{\oplus }|{{H}_{{{2}_{\left( 1\,atm \right)}}}}|Pt$