MCQ
Thomas slag is
- ✓$C{a_3}{(P{O_4})_2}$
- B$MnSi{O_3}$
- C$CaSi{O_3}$
- D$FeSi{O_3}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$I.$ $Zn +$ conc. $HNO_3$ (hot) $\rightarrow Zn(NO_3)_2 + X + H_2O$
$II.$ $Zn +$ dil. $HNO_3$ (cold) $\rightarrow Zn(NO_3)_2 + Y + H_2O$
Compounds $X$ and $Y$ are respectively
Ratio of moles of formic acid obtained in reaction $(i)$ and reaction $(ii)$ is
