Which of the following species has plane tringular shape ?
A. `N_(3)^(-)`
B. `NO_(3)^(-)`
C. `NO_(2)^(-)`
D. `CO_(2)`
A. `N_(3)^(-)`
B. `NO_(3)^(-)`
C. `NO_(2)^(-)`
D. `CO_(2)`
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Correct Answer – 2
The azide ion `(N_(3)^(-))` has `16` valence electrons and is isoeelctronic with `CO_(2)` it is linear as is `CO_(2)`
`:overset(-)overset(..)(N)=overset(+)(N)=overset(-)overset(..)(N): harr:N equiv overset(+)(N)-underset(..)overset(2-)overset(..)(N): harr :underset(..)overset(2-)overset(..)(N) -overset(+)(N) equiv N:`
This question can also be credited to chemical bonding chapter (part 1).