The hybridisation of atomic orbitals of nitrogen in
` NO_(2)^(+), NO_(3)^(-) and NH_(4)^(+)` are
A. `sp , sp^(3) and sp^(2)` respectively
B. `sp,sp^(2) and sp^(3)` respectivly
C. `sp^(2), sp and sp^(3)` respectively
D. `sp^(2), sp^(3) and sp^(3)` respectively.
