MCQ
Which alloy contains $Cu, Sn$ and $Zn$
- ✓Gun metal
- BSolder
- CBell metal
- DGerman silver
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$2S{O_2} + {O_2}$ $\rightleftharpoons$ $2S{O_3};\,\,\Delta H = - 45.2\,kcal$ Which of the following factors favours the formation of $S{O_3}$