MCQ
Artificial smoke screens are made by
- AAluminium oxide
- BLead oxide
- CSodium oxide
- ✓Titanium oxide
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| ${N_2}$ in $cc$ | $6.25$ | $9.50$ | $11.42$ | $13.65$ | $35.05$ |
| Time (minutes) | $10$ | $15$ | $20$ | $25$ | Finally |
Reason : The concentration of salt content in the cells increases.