How is red phosphorus obtained from white phosphorus?
- ABy heating in an inert atmosphere
- BBy distillation in an inert atmosphere
- CBy dissolving in a solvent followed by crystallization
- DBy melting and pouring the liquid into water
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Match the following components of a cell with their respective percentage of the total cellular mass:
Components $\%$ of the total cellular mass $A$. Water $1$. $10-15$ $B$. Proteins $2$. $70-90$ $C$. Carbohydrates $3$. $5-7$ $D$. Lipids $4$. $3$ $E$. Nucleic acids $5$. $2$ $F$. Ions $6$. $1$
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| $A$. Water | $1$. $10-15$ |
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