MCQ
Which one of the following species has plane triangular shape?
- A$\text{N}_3$
- B$\text{NO}^-_3$
- C$\text{NO}^-_2$
- D$\text{CO}_2$
$\text{NO}^-_3$
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$O ^{2-}, F ^{-}, Al , Mg ^{2+}, Na ^{+}, O ^{+}, Mg , Al ^{3+}, F$
$(C= 3 \times 10^8 \,ms^{-1}$ and $N_A =6.02 \times mol^{-1}).$