MCQ
The correct decreasing order for metallic character is
- ✓$Na > Mg > Be > Si > P$
- B$P > Si > Be > Mg > Na$
- C$Si > P > Be > Na > Mg$
- D$Be > Na > Mg > Si > P$
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$NH_3(g) + O_2(g) \rightarrow NO(g) + H_2O(l)$
$NO(g) + O_2(g) \rightarrow NO_2(g)$
To obtain maximum mass of $NO_2$ from a given mass of mixture $NH_3$ and $O_2$, the ratio of mass of $NH_3$ to $O_2$ should be -