Consider the three possible structures of the thiocyanate ion (SCN‾)
Structure A [C=N=S]‾
Structure B [S=C=N]‾
Structure C [C=S=N]‾
What are the correct formal charges for the atoms in structure A?
Choose one :
O S=-1, N=-1, C=-1
O S=-1, N=1, C=-2
O S=0, N=1, C=-2
What are the correct formal charges for the atoms in structure B?
Choose one :
O S=0, N=-1, C=0
O S=0, N=-1, C=-1
O S=0, N=1, C=-2
What are the correct formal charges for the atoms in structure C?
Choose one :
O S=2, N=-1, C=-2
O S=0, N=-1, C=0
O S=-1, N=2, C=-2
Based on the formal charges above, choose the best structure
Choose one:
O Structure A
O Structure B
O Strucutre A & B are equivalent
O Structure C