MCQ
Ferric sulphate on heating gives
- A$SO_2$ and $SO_3$
- B$SO_2$ only
- ✓$SO_3$ only
- D$S$
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$(I)$ $CrO_4^{2-}$
$(II)$ $MnO_4^-$
$(III)$ $Cr_2O_7^{2-}$ ?
$N_2(g) + 3H_2(g) \to 2NH_3(g)$ is
$-\,92.38\,KJ$ at $298\,K$ . The internal energy change $\Delta U$ at $298\,K$ is.....$KJ$
