MCQ
In the modern periodic table, elements are arranged in
- AIncreasing mass
- BIncreasing volume
- ✓Increasing atomic number
- DAlphabetically
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
${P_4}\xrightarrow{{{O_2}}}'X'$
${P_4}\xrightarrow{{{O_2}(excess)}}'Y'$


